kernel: can: ems_usb: validate CPC message lengths

cve CVE-2026-74460 2 sources, 2 claims · Watch

Red Hat writes:
kernel: can: ems_usb: validate CPC message lengths the claim

What it is to other things

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

affectslinux/linux
NVD says “Linux · Linux”
made_bylinux
NVD says “Linux”

What each source says

PropertySourceSaidMeans here
Cvss
cvss
Red Hat5.5
receipt
Source
Red Hat
Its words
5.5
Read by
field:cvss3_score
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-74460",
  "CWE": "CWE-130",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2517066",
  "bugzilla_description": "kernel: can: ems_usb: validate CPC message lengths",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-15T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-74460.json",
  "severity": "moderate"
}
—
Cwe
cwe
Red HatCWE-130
receipt
Source
Red Hat
Its words
CWE-130
Read by
field:CWE
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-74460",
  "CWE": "CWE-130",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2517066",
  "bugzilla_description": "kernel: can: ems_usb: validate CPC message lengths",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-15T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-74460.json",
  "severity": "moderate"
}
—
Product
product
NVDLinux
receipt
Source
NVD
Its words
Linux
Read by
field:cve.affected[].affectedData[].product
Said since
2026-10-03 12:09 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Linux",
            "programFiles": [
              "drivers/net/can/usb/ems_usb.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "lessThan": "1c380a332e342b7d58c86c4f556cb0823b16a9b8",
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                "versionType": "git"
              },
              {
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                "versionType": "git"
              },
              {
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                "versionType": "git"
              },
              {
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              },
              {
                "lessThan": "0b9090717c7e2184e2c427bbcc752f295116ac1d",
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              },
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              },
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              },
              {
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                "versionType": "git"
              }
            ]
          },
          {
            "defaultStatus": "affected",
            "product": "Linux",
            "programFiles": [
              "drivers/net/can/usb/ems_usb.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "status": "affected",
                "version": "2.6.32"
              },
              {
                "lessThan": "2.6.32",
                "status": "unaffected",
                "version": "0",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "5.10.*",
                "status": "unaffected",
                "version": "5.10.271",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "5.15.*",
                "status": "unaffected",
                "version": "5.15.216",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.1.*",
                "status": "unaffected",
                "version": "6.1.183",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.6.*",
                "status": "unaffected",
                "version": "6.6.151",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.12.*",
                "status": "unaffected",
                "version": "6.12.103",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.18.*",
                "status": "unaffected",
                "version": "6.18.44",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "7.1.*",
                "status": "unaffected",
                "version": "7.1.8",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "7.2",
                "versionType": "original_commit_for_fix"
              }
            ]
          }
        ],
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ems_usb: validate CPC message lengths\n\nems_usb_read_bulk_callback() walks CPC messages packed in one USB\nreceive buffer.\n\nCheck that each declared message fits in the URB payload. Also require the\ntype-specific payload to cover the fields used by the CAN, state, error and\noverrun handlers."
      }
    ],
    "id": "CVE-2026-74460",
    "lastModified": "2026-10-03T11:17:38.843",
    "metrics": {},
    "published": "2026-08-15T13:17:50.663",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/02925f51377f2a42a6724f00549167499c9302e5"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/0b23144c59c126beb4a7761a85a194ae0fe668a5"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/0b9090717c7e2184e2c427bbcc752f295116ac1d"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/1c380a332e342b7d58c86c4f556cb0823b16a9b8"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/bb3cc8da8a2967c0f8e83d148fc6870b19fa32c6"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/ce8125566b1d0b0f16449407e014addf451804ea"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/db5655287d78f00daf98888a520bb8da4d30126d"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/df3ac2a672a5284441f120d486acabdd6740fc2a"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}
—
Severity
severity
Red Hatmoderate
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
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-74460",
  "CWE": "CWE-130",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2517066",
  "bugzilla_description": "kernel: can: ems_usb: validate CPC message lengths",
  "cvss3_score": "5.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-15T00:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-74460.json",
  "severity": "moderate"
}
medium
Status
status
NVDReceived
receipt
Source
NVD
Its words
Received
Read by
field:cve.vulnStatus
Said since
2026-10-03 12:09 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Linux",
            "programFiles": [
              "drivers/net/can/usb/ems_usb.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "lessThan": "1c380a332e342b7d58c86c4f556cb0823b16a9b8",
                "status": "affected",
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                "versionType": "git"
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                "versionType": "semver"
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                "versionType": "semver"
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                "versionType": "semver"
              },
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                "versionType": "semver"
              },
              {
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                "status": "unaffected",
                "version": "7.1.8",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "7.2",
                "versionType": "original_commit_for_fix"
              }
            ]
          }
        ],
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ems_usb: validate CPC message lengths\n\nems_usb_read_bulk_callback() walks CPC messages packed in one USB\nreceive buffer.\n\nCheck that each declared message fits in the URB payload. Also require the\ntype-specific payload to cover the fields used by the CAN, state, error and\noverrun handlers."
      }
    ],
    "id": "CVE-2026-74460",
    "lastModified": "2026-10-03T11:17:38.843",
    "metrics": {},
    "published": "2026-08-15T13:17:50.663",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/02925f51377f2a42a6724f00549167499c9302e5"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      },
      {
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      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      },
      {
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        "url": "https://git.kernel.org/stable/c/db5655287d78f00daf98888a520bb8da4d30126d"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/df3ac2a672a5284441f120d486acabdd6740fc2a"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}
—
Vendor
vendor
NVDLinux
receipt
Source
NVD
Its words
Linux
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-10-03 12:09 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Linux",
            "programFiles": [
              "drivers/net/can/usb/ems_usb.c"
            ],
            "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
            "vendor": "Linux",
            "versions": [
              {
                "lessThan": "1c380a332e342b7d58c86c4f556cb0823b16a9b8",
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                "versionType": "git"
              },
              {
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                "status": "affected",
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                "versionType": "git"
              },
              {
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              },
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            ]
          },
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            "product": "Linux",
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            ],
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            "vendor": "Linux",
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              {
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              },
              {
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                "status": "unaffected",
                "version": "0",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "5.10.*",
                "status": "unaffected",
                "version": "5.10.271",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "5.15.*",
                "status": "unaffected",
                "version": "5.15.216",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.1.*",
                "status": "unaffected",
                "version": "6.1.183",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.6.*",
                "status": "unaffected",
                "version": "6.6.151",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.12.*",
                "status": "unaffected",
                "version": "6.12.103",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.18.*",
                "status": "unaffected",
                "version": "6.18.44",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "7.1.*",
                "status": "unaffected",
                "version": "7.1.8",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "7.2",
                "versionType": "original_commit_for_fix"
              }
            ]
          }
        ],
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ems_usb: validate CPC message lengths\n\nems_usb_read_bulk_callback() walks CPC messages packed in one USB\nreceive buffer.\n\nCheck that each declared message fits in the URB payload. Also require the\ntype-specific payload to cover the fields used by the CAN, state, error and\noverrun handlers."
      }
    ],
    "id": "CVE-2026-74460",
    "lastModified": "2026-10-03T11:17:38.843",
    "metrics": {},
    "published": "2026-08-15T13:17:50.663",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/02925f51377f2a42a6724f00549167499c9302e5"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/0b23144c59c126beb4a7761a85a194ae0fe668a5"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/0b9090717c7e2184e2c427bbcc752f295116ac1d"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/1c380a332e342b7d58c86c4f556cb0823b16a9b8"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/bb3cc8da8a2967c0f8e83d148fc6870b19fa32c6"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/ce8125566b1d0b0f16449407e014addf451804ea"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/db5655287d78f00daf98888a520bb8da4d30126d"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/df3ac2a672a5284441f120d486acabdd6740fc2a"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}
—

vulnerability

kernel: can: ems_usb: validate CPC message lengths
zetlyn/cve-redhat · 2026-08-15
cvss 5.5 cwe CWE-130 severity moderate source
In the Linux kernel, the following vulnerability has been resolved: can: ems_usb: validate CPC message lengths ems_usb_read_bulk_callback() walks CPC messages packed in one USB receive buffer. Check that each declared message fits in the URB payload. Also require the type-specific payload to cover the fields used by the CAN, state, error and overrun handlers.
zetlyn/cve-nvd · 2026-08-15
product Linux status Received vendor Linux source