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CVE-2026-24883

Estado: AnalizadaMedia (5.5)—

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).

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Gnupg — GnupgGpg4win — Gpg4win

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-24883",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-24883",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-27T20:02:25.525861Z"
        }
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "source": "nvd@nist.gov",
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  "published": "2026-01-27T19:16:16.823",
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      "tags": [
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      "url": "https://www.openwall.com/lists/oss-security/2026/01/27/8",
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        "Third Party Advisory"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "cve@mitre.org",
      "description": [
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          "lang": "en",
          "value": "CWE-476"
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      "lang": "en",
      "value": "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)."
    },
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      "value": "En GnuPG anterior a 2.5.17, una longitud de paquete de firma larga hace que parse_signature devuelva éxito con sig->data[] establecido a un valor NULL, lo que lleva a una denegación de servicio (caída de la aplicación)."
    }
  ],
  "lastModified": "2026-06-17T10:23:44.710",
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