firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization

cve CVE-2026-4948 2 sources, 2 claims · Watch

Red Hat writes:
firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization the claim

Severity: MEDIUM NVD
moderate Red Hat
CVSS: 5.5 NVD
5.5 Red Hat
Vendor: Red Hat NVD
Product: Red Hat Enterprise Linux 10 NVD
CWE: CWE-279 NVD
CWE-279 Red Hat

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-03-27	first spoke of it: A flaw was found in firewalld. A local unprivileged user can exploit this vulnerability by mis-authorizing two runtime D-Bus (Desktop Bus) setters, setZoneSettings2 and setPolicySettings. This mis-authorization allows the user to modify the runtime firewall state without proper authentication, leading to unauthorized changes in network security configurations.	NVD
2026-03-27	first spoke of it: firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization	Red Hat

What it is to other things

affects	firewalld/firewalld NVD
affects	redhat/enterprise_linux NVD
made_by	firewalld NVD
made_by	redhat NVD

In words only, so not counted until a person confirms one:

made_by	`red_hat` NVD says “Red Hat”
affects	`red_hat/red_hat_enterprise_linux_10` NVD says “Red Hat · Red Hat Enterprise Linux 10”

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

At least one of those steps needs a person.

receipt

Source: NVD
Its words: no
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	no
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
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            "vendor": "Red Hat",
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            "cpes": [
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            ],
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            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
            "vendor": "Red Hat",
            "versions": [
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                "status": "unaffected",
                "version": "0:2.3.1-1.el10_0.1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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            "packageName": "firewalld",
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            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
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            "cpes": [
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            "defaultStatus": "affected",
            "packageName": "openshift/ose-rhel-coreos-8",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          },
          {
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            "defaultStatus": "unknown",
            "packageName": "openshift/ose-rhel-coreos-9",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
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            "negate": false,
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    "cveTags": [],
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      }
    ],
    "id": "CVE-2026-4948",
    "lastModified": "2026-09-16T13:18:01.110",
    "metrics": {
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        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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            "version": "3.1"
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      "ssvcV203": [
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              },
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              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-27T11:21:05.300360Z",
            "version": "2.0.3"
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        "url": "https://access.redhat.com/errata/RHSA-2026:67585"
      },
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        "url": "https://access.redhat.com/errata/RHSA-2026:67843"
      },
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      },
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        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452086"
      },
      {
        "source": "af854a3a-2127-422b-91ae-364da2661108",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-279"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

5.5

receipt

Source: NVD
Its words: 5.5
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
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      {
        "affectedData": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
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            ],
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            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat",
            "versions": [
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                "status": "unaffected",
                "version": "0:2.4.2-1.el10_2",
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      }
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        "type": "Secondary"
      }
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  }
}

—

CVSS

cvss

Red Hat

5.5

receipt

Source: Red Hat
Its words: 5.5
Read by: field:cvss3_score
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-4948",
  "CWE": "CWE-279",
  "advisories": [
    "RHSA-2026:67843",
    "RHSA-2026:67585",
    "RHBA-2026:28238"
  ],
  "affected_packages": [
    "firewalld-0:2.3.1-1.el10_0.1",
    "firewalld-0:2.4.2-1.el10_2",
    "firewalld-0:1.3.4-20.el9_8"
  ],
  "bugzilla": "2452086",
  "bugzilla_description": "firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-27T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4948.json",
  "severity": "moderate"
}

—

CVSS vector

cvss_vector

NVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

receipt

Source: NVD
Its words: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
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            "packageName": "firewalld",
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            "vendor": "Red Hat",
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              }
            ]
          },
          {
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            ],
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            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
            "vendor": "Red Hat",
            "versions": [
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                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
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              "cpe:/o:redhat:enterprise_linux:9::baseos"
            ],
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            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
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            ]
          },
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            ],
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            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
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            ],
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            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:openshift:4"
            ],
            "defaultStatus": "affected",
            "packageName": "openshift/ose-rhel-coreos-8",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:openshift:4"
            ],
            "defaultStatus": "unknown",
            "packageName": "openshift/ose-rhel-coreos-9",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
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                "versionEndIncluding": "2.4.0",
                "vulnerable": true
              },
              {
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              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
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      }
    ],
    "id": "CVE-2026-4948",
    "lastModified": "2026-09-16T13:18:01.110",
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        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          },
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        }
      ],
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          "ssvcData": {
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            "options": [
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              },
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              },
              {
                "technicalImpact": "partial"
              }
            ],
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            "timestamp": "2026-03-27T11:21:05.300360Z",
            "version": "2.0.3"
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      ]
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      },
      {
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        "url": "https://access.redhat.com/errata/RHSA-2026:67585"
      },
      {
        "source": "secalert@redhat.com",
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      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Mitigation",
          "Vendor Advisory"
        ],
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      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
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      },
      {
        "source": "af854a3a-2127-422b-91ae-364da2661108",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
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        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

Red Hat

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

receipt

Source: Red Hat
Its words: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Read by: field:cvss3_scoring_vector
Said since: 2026-10-06 13:01 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

2026-10-06 13:01 UTC	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
2026-09-29 09:44 UTC	—

What the source handed over

{
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  "CWE": "CWE-279",
  "advisories": [
    "RHSA-2026:67843",
    "RHSA-2026:67585",
    "RHBA-2026:28238"
  ],
  "affected_packages": [
    "firewalld-0:2.3.1-1.el10_0.1",
    "firewalld-0:2.4.2-1.el10_2",
    "firewalld-0:1.3.4-20.el9_8"
  ],
  "bugzilla": "2452086",
  "bugzilla_description": "firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-27T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4948.json",
  "severity": "moderate"
}

—

CWE

cwe

NVD

CWE-279

receipt

Source: NVD
Its words: CWE-279
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CWE-279
2026-09-29 09:45 UTC	—

What the source handed over

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            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat",
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                "lessThan": "*",
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            ]
          },
          {
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            ]
          },
          {
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              "cpe:/a:redhat:enterprise_linux:9::appstream",
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          },
          {
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              "cpe:/o:redhat:enterprise_linux:9::baseos"
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            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
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            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
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          },
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            ],
            "defaultStatus": "unknown",
            "packageName": "openshift/ose-rhel-coreos-9",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
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            "version": "3.1"
          },
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      },
      {
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        "url": "https://access.redhat.com/errata/RHSA-2026:67585"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:67843"
      },
      {
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          "Vendor Advisory"
        ],
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      },
      {
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        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
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      },
      {
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        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

Red Hat

CWE-279

receipt

Source: Red Hat
Its words: CWE-279
Read by: field:CWE
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

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  "CWE": "CWE-279",
  "advisories": [
    "RHSA-2026:67843",
    "RHSA-2026:67585",
    "RHBA-2026:28238"
  ],
  "affected_packages": [
    "firewalld-0:2.3.1-1.el10_0.1",
    "firewalld-0:2.4.2-1.el10_2",
    "firewalld-0:1.3.4-20.el9_8"
  ],
  "bugzilla": "2452086",
  "bugzilla_description": "firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-27T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4948.json",
  "severity": "moderate"
}

—

Exploitation

exploitation

NVD

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
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            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
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            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:2.4.2-1.el10_2",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
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            ],
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          {
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          {
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          },
          {
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            ],
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            "packageName": "firewalld",
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            "vendor": "Red Hat"
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            "vendor": "Red Hat"
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            ],
            "defaultStatus": "unknown",
            "packageName": "openshift/ose-rhel-coreos-9",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          }
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        "source": "secalert@redhat.com"
      }
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    "configurations": [
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            ],
            "negate": false,
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    "cveTags": [],
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            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
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          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
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          "ssvcData": {
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            "options": [
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              },
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              }
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      },
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        "tags": [
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          "Vendor Advisory"
        ],
        "url": "https://access.redhat.com/security/cve/CVE-2026-4948"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
          "Issue Tracking",
          "Vendor Advisory"
        ],
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452086"
      },
      {
        "source": "af854a3a-2127-422b-91ae-364da2661108",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-279"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Packages

packages

Red Hat

firewalld-0:2.3.1-1.el10_0.1, firewalld-0:2.4.2-1.el10_2, firewalld-0:1.3.4-20.el9_8

receipt

Source: Red Hat
Its words: firewalld-0:2.3.1-1.el10_0.1, firewalld-0:2.4.2-1.el10_2, firewalld-0:1.3.4-20.el9_8
Read by: field:affected_packages[]
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-4948",
  "CWE": "CWE-279",
  "advisories": [
    "RHSA-2026:67843",
    "RHSA-2026:67585",
    "RHBA-2026:28238"
  ],
  "affected_packages": [
    "firewalld-0:2.3.1-1.el10_0.1",
    "firewalld-0:2.4.2-1.el10_2",
    "firewalld-0:1.3.4-20.el9_8"
  ],
  "bugzilla": "2452086",
  "bugzilla_description": "firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-27T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4948.json",
  "severity": "moderate"
}

—

Product

product

NVD

Red Hat Enterprise Linux 10

receipt

Source: NVD
Its words: Red Hat Enterprise Linux 10
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Red Hat Enterprise Linux 10
2026-09-29 09:45 UTC	—

What the source handed over

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          {
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            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
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            "cpes": [
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            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
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            "cpes": [
              "cpe:/a:redhat:openshift:4"
            ],
            "defaultStatus": "affected",
            "packageName": "openshift/ose-rhel-coreos-8",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          },
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            "defaultStatus": "unknown",
            "packageName": "openshift/ose-rhel-coreos-9",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
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    ],
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    "lastModified": "2026-09-16T13:18:01.110",
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            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
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      "ssvcV203": [
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        "url": "https://access.redhat.com/errata/RHSA-2026:67585"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:67843"
      },
      {
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        "tags": [
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          "Vendor Advisory"
        ],
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      },
      {
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        "tags": [
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          "Vendor Advisory"
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      },
      {
        "source": "af854a3a-2127-422b-91ae-364da2661108",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
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            "value": "CWE-279"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

MEDIUM

From 4.0 to 6.9.

receipt

Source: NVD
Its words: MEDIUM
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	MEDIUM
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:2.4.2-1.el10_2",
                "versionType": "rpm"
              }
            ]
          },
          {
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            "cpes": [
              "cpe:/o:redhat:enterprise_linux_eus:10.0"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
            "vendor": "Red Hat",
            "versions": [
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                "status": "unaffected",
                "version": "0:2.3.1-1.el10_0.1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:9::appstream",
              "cpe:/o:redhat:enterprise_linux:9::baseos"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
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                "version": "0:1.3.4-20.el9_8",
                "versionType": "rpm"
              }
            ]
          },
          {
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            "cpes": [
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              "cpe:/o:redhat:enterprise_linux:9::baseos"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:1.3.4-20.el9_8",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:openshift:4"
            ],
            "defaultStatus": "affected",
            "packageName": "openshift/ose-rhel-coreos-8",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
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            ],
            "defaultStatus": "unknown",
            "packageName": "openshift/ose-rhel-coreos-9",
            "product": "Red Hat OpenShift Container Platform 4",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      }
    ],
    "configurations": [
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                "versionEndIncluding": "2.4.0",
                "vulnerable": true
              },
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                "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A",
                "vulnerable": true
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            "negate": false,
            "operator": "OR"
          }
        ]
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    ],
    "cveTags": [],
    "descriptions": [
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        "lang": "en",
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      }
    ],
    "id": "CVE-2026-4948",
    "lastModified": "2026-09-16T13:18:01.110",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
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          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
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              }
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            "timestamp": "2026-03-27T11:21:05.300360Z",
            "version": "2.0.3"
          }
        }
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    },
    "published": "2026-03-27T06:16:39.543",
    "references": [
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        "url": "https://access.redhat.com/errata/RHBA-2026:28238"
      },
      {
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        "url": "https://access.redhat.com/errata/RHSA-2026:67585"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:67843"
      },
      {
        "source": "secalert@redhat.com",
        "tags": [
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          "Vendor Advisory"
        ],
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      },
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          "Issue Tracking",
          "Vendor Advisory"
        ],
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      },
      {
        "source": "af854a3a-2127-422b-91ae-364da2661108",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Modified",
    "weaknesses": [
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          {
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            "value": "CWE-279"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

medium

Severity

severity

Red Hat

moderate

A flaw that is harder to exploit, or whose impact is limited.

receipt

Source: Red Hat
Its words: moderate
Read by: field:severity
Said since: 2026-09-29 09:44 UTC
Last answered: 2026-10-06 13:02 UTC
Original: open at the source

What the source handed over

{
  "CVE": "CVE-2026-4948",
  "CWE": "CWE-279",
  "advisories": [
    "RHSA-2026:67843",
    "RHSA-2026:67585",
    "RHBA-2026:28238"
  ],
  "affected_packages": [
    "firewalld-0:2.3.1-1.el10_0.1",
    "firewalld-0:2.4.2-1.el10_2",
    "firewalld-0:1.3.4-20.el9_8"
  ],
  "bugzilla": "2452086",
  "bugzilla_description": "firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-27T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-4948.json",
  "severity": "moderate"
}

medium

Status

status

NVD

Modified

receipt

Source: NVD
Its words: Modified
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:2.4.2-1.el10_2",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux_eus:10.0"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
            "vendor": "Red Hat",
            "versions": [
              {
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                "status": "unaffected",
                "version": "0:2.3.1-1.el10_0.1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:9::appstream",
              "cpe:/o:redhat:enterprise_linux:9::baseos"
            ],
            "defaultStatus": "affected",
            "packageName": "firewalld",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
            "versions": [
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                "version": "0:1.3.4-20.el9_8",
                "versionType": "rpm"
              }
            ]
          },
          {
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            "cpes": [
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              "cpe:/o:redhat:enterprise_linux:9::baseos"
            ],
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            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
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                "version": "0:1.3.4-20.el9_8",
                "versionType": "rpm"
              }
            ]
          },
          {
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      },
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      },
      {
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      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

partial

The attacker gains limited control, or limited information.

receipt

Source: NVD
Its words: partial
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	partial
2026-09-29 09:45 UTC	—

What the source handed over

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        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

Red Hat

receipt

Source: NVD
Its words: Red Hat
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Red Hat
2026-09-29 09:45 UTC	—

What the source handed over

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    "sourceIdentifier": "secalert@redhat.com",
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        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

firewalld: firewalld: Local unprivileged user can modify firewall state due to D-Bus setter mis-authorization zetlyn/cve-redhat · 2026-03-27	cvss 5.5 cvss_vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N cwe CWE-279 packages firewalld-0:2.3.1-1.el10_0.1, firewalld-0:2.4.2-1.el10_2, firewalld-0:1.3.4-20.el9_8 severity moderate	source
A flaw was found in firewalld. A local unprivileged user can exploit this vulnerability by mis-authorizing two runtime D-Bus (Desktop Bus) setters, setZoneSettings2 and setPolicySettings. This mis-authorization allows the user to modify the runtime firewall state without proper authentication, leading to unauthorized changes in network security configurations. zetlyn/cve-nvd · 2026-03-27	automatable no cvss 5.5 cvss_vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N cwe CWE-279 exploitation none product Red Hat Enterprise Linux 10 severity MEDIUM status Modified technical_impact partial vendor Red Hat	source