FKIE_CVE-2025-68114

Vulnerability from fkie_nvd - Published: 2025-12-17 22:16 - Updated: 2026-06-17 09:58
Severity
4.8 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, an unchecked vsnprintf return in SStream_concat lets a malicious cs_opt_mem.vsnprintf drive SStream’s index negative or past the end, leading to a stack buffer underflow/overflow when the next write occurs. Commit 2c7797182a1618be12017d7d41e0b6581d5d529e fixes the issue.
References
security-advisories@github.comhttps://github.com/capstone-engine/capstone/commit/2c7797182a1618be12017d7d41e0b6581d5d529ePatch
security-advisories@github.comhttps://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76rVendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76rVendor Advisory
Impacted products
Vendor Product Version
capstone-engine capstone *
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
capstone-engine capstone 6.0.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "capstone",
          "vendor": "capstone-engine",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 6.0.0-Alpha5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:capstone-engine:capstone:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DD22C7C2-F647-4AB5-BEB4-C70F722C0419",
              "versionEndExcluding": "6.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha1:*:*:*:*:*:*",
              "matchCriteriaId": "99F76525-F73B-4F66-AE46-A1ECAF0C7A0C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha2:*:*:*:*:*:*",
              "matchCriteriaId": "442C7F48-5BEE-4702-AC0F-DE5C70FAA93F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha3:*:*:*:*:*:*",
              "matchCriteriaId": "3C88415A-376C-4F7F-9D7D-3CB5C8FB9346",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha4:*:*:*:*:*:*",
              "matchCriteriaId": "67358CE5-F734-4E55-B021-D3AC5D937DD4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:capstone-engine:capstone:6.0.0:alpha5:*:*:*:*:*:*",
              "matchCriteriaId": "9DED59B8-DC00-4323-89FA-044F7666AF5D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, an unchecked vsnprintf return in SStream_concat lets a malicious cs_opt_mem.vsnprintf drive SStream\u2019s index negative or past the end, leading to a stack buffer underflow/overflow when the next write occurs. Commit 2c7797182a1618be12017d7d41e0b6581d5d529e fixes the issue."
    }
  ],
  "id": "CVE-2025-68114",
  "lastModified": "2026-06-17T09:58:33.100",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 3.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-68114",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-18T14:55:48.777775Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-17T22:16:01.400",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/capstone-engine/capstone/commit/2c7797182a1618be12017d7d41e0b6581d5d529e"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        },
        {
          "lang": "en",
          "value": "CWE-124"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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