FKIE_CVE-2026-24883

Vulnerability from fkie_nvd - Published: 2026-01-27 19:16 - Updated: 2026-02-06 18:06
Severity ?
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).
References
cve@mitre.orghttps://dev.gnupg.org/T8049Patch, Product
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2026/01/27/8Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
gnupg gnupg *
gpg4win gpg4win *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "B85633E2-C26B-4A9C-8277-84071984B915",
              "versionEndExcluding": "2.5.17",
              "versionStartIncluding": "2.5.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gpg4win:gpg4win:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "731095A1-2A2B-4441-B76D-CD78119D7E0E",
              "versionEndExcluding": "5.0.1",
              "versionStartIncluding": "5.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig-\u003edata[] set to a NULL value, leading to a denial of service (application crash)."
    }
  ],
  "id": "CVE-2026-24883",
  "lastModified": "2026-02-06T18:06:07.760",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-01-27T19:16:16.823",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Product"
      ],
      "url": "https://dev.gnupg.org/T8049"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2026/01/27/8"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.