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capstone: Capstone: Denial of service via out-of-bounds read in M68K and RISCV backends

cve CVE-2026-49282 2 sources, 2 claims · Watch

Red Hat writes:
capstone: Capstone: Denial of service via out-of-bounds read in M68K and RISCV backends the claim

What it is to other things

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

affectscapstone_engine/capstone
NVD says “capstone-engine · capstone”
made_bycapstone_engine
NVD says “capstone-engine”

What each source says

PropertySourceSaidMeans here
Cvss
cvss
conflict		NVD5.1
receipt
Source
NVD
Its words
5.1
Read by
field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-09-29 09:45 UTC
Last answered
2026-10-05 12:24 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "capstone",
            "vendor": "capstone-engine",
            "versions": [
              {
                "status": "affected",
                "version": "< 6.0.0-Alpha9"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public `cs_insn_name()` API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue."
      }
    ],
    "id": "CVE-2026-49282",
    "lastModified": "2026-09-18T20:05:53.723",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 2.5,
          "impactScore": 2.5,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-49282",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-17T18:10:11.366665Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-14T18:17:30.830",
    "references": [
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/blob/251c5bb4bc9bb92973e738ae3c5f4ef86f103356/ChangeLog#L102"
      },
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8"
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-125"
          },
          {
            "lang": "en",
            "value": "CWE-129"
          },
          {
            "lang": "en",
            "value": "CWE-191"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Cvss
cvss
conflict		Red Hat6.2
receipt
Source
Red Hat
Its words
6.2
Read by
field:cvss3_score
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-05 12:24 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-49282",
  "CWE": "CWE-125",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2516103",
  "bugzilla_description": "capstone: Capstone: Denial of service via out-of-bounds read in M68K and RISCV backends",
  "cvss3_score": "6.2",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-14T17:44:44Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-49282.json",
  "severity": "moderate"
}
—
Cwe
cwe
Red HatCWE-125
receipt
Source
Red Hat
Its words
CWE-125
Read by
field:CWE
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-05 12:24 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-49282",
  "CWE": "CWE-125",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2516103",
  "bugzilla_description": "capstone: Capstone: Denial of service via out-of-bounds read in M68K and RISCV backends",
  "cvss3_score": "6.2",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-14T17:44:44Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-49282.json",
  "severity": "moderate"
}
—
Product
product
NVDcapstone
receipt
Source
NVD
Its words
capstone
Read by
field:cve.affected[].affectedData[].product
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-05 12:24 UTC
Original
open at the source
2026-09-29 17:49 UTCcapstone
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "capstone",
            "vendor": "capstone-engine",
            "versions": [
              {
                "status": "affected",
                "version": "< 6.0.0-Alpha9"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public `cs_insn_name()` API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue."
      }
    ],
    "id": "CVE-2026-49282",
    "lastModified": "2026-09-18T20:05:53.723",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 2.5,
          "impactScore": 2.5,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-49282",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-17T18:10:11.366665Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-14T18:17:30.830",
    "references": [
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/blob/251c5bb4bc9bb92973e738ae3c5f4ef86f103356/ChangeLog#L102"
      },
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8"
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-125"
          },
          {
            "lang": "en",
            "value": "CWE-129"
          },
          {
            "lang": "en",
            "value": "CWE-191"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}
—
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
2026-10-05 12:24 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-49282",
  "CWE": "CWE-125",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2516103",
  "bugzilla_description": "capstone: Capstone: Denial of service via out-of-bounds read in M68K and RISCV backends",
  "cvss3_score": "6.2",
  "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-14T17:44:44Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-49282.json",
  "severity": "moderate"
}
medium
Status
status
NVDAwaiting Analysis
receipt
Source
NVD
Its words
Awaiting Analysis
Read by
field:cve.vulnStatus
Said since
2026-09-29 09:45 UTC
Last answered
2026-10-05 12:24 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "capstone",
            "vendor": "capstone-engine",
            "versions": [
              {
                "status": "affected",
                "version": "< 6.0.0-Alpha9"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public `cs_insn_name()` API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue."
      }
    ],
    "id": "CVE-2026-49282",
    "lastModified": "2026-09-18T20:05:53.723",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
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          "impactScore": 2.5,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-49282",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
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            "role": "CISA Coordinator",
            "timestamp": "2026-08-17T18:10:11.366665Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-14T18:17:30.830",
    "references": [
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/blob/251c5bb4bc9bb92973e738ae3c5f4ef86f103356/ChangeLog#L102"
      },
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8"
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-125"
          },
          {
            "lang": "en",
            "value": "CWE-129"
          },
          {
            "lang": "en",
            "value": "CWE-191"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Vendor
vendor
NVDcapstone-engine
receipt
Source
NVD
Its words
capstone-engine
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-05 12:24 UTC
Original
open at the source
2026-09-29 17:49 UTCcapstone-engine
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "capstone",
            "vendor": "capstone-engine",
            "versions": [
              {
                "status": "affected",
                "version": "< 6.0.0-Alpha9"
              }
            ]
          }
        ],
        "source": "security-advisories@github.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public `cs_insn_name()` API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue."
      }
    ],
    "id": "CVE-2026-49282",
    "lastModified": "2026-09-18T20:05:53.723",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 2.5,
          "impactScore": 2.5,
          "source": "security-advisories@github.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-49282",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-17T18:10:11.366665Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-14T18:17:30.830",
    "references": [
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/blob/251c5bb4bc9bb92973e738ae3c5f4ef86f103356/ChangeLog#L102"
      },
      {
        "source": "security-advisories@github.com",
        "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8"
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8"
      }
    ],
    "sourceIdentifier": "security-advisories@github.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-125"
          },
          {
            "lang": "en",
            "value": "CWE-129"
          },
          {
            "lang": "en",
            "value": "CWE-191"
          }
        ],
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  }
}
—

vulnerability

capstone: Capstone: Denial of service via out-of-bounds read in M68K and RISCV backends
zetlyn/cve-redhat · 2026-08-14
cvss 6.2 cwe CWE-125 severity moderate source
Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public `cs_insn_name()` API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue.
zetlyn/cve-nvd · 2026-08-14
cvss 5.1 product capstone status Awaiting Analysis vendor capstone-engine source