CVE-2005-2096

Estado: ModificadaAlta (7.5)—
zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of a length greater than 1, which leads to a buffer overflow, as demonstrated using a crafted PNG file.
CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Puntuación base: 7.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 5.63%
Percentil entre todas las CVEs puntuadas: 93
Fecha de la puntuación: 6/10/2026
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 (1)

Zlib — Zlib
CWE

NVD-CWE-Other
Referencias

JSON original (NVD)

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{
  "id": "CVE-2005-2096",
  "cveTags": [],
  "metrics": {
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of a length greater than 1, which leads to a buffer overflow, as demonstrated using a crafted PNG file."
    }
  ],
  "lastModified": "2026-07-14T12:16:44.270",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:zlib:zlib:1.2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9E8D0212-4805-4C50-A8C7-7A2AF3424929"
            },
            {
              "criteria": "cpe:2.3:a:zlib:zlib:1.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4C493104-5D6B-417F-BD77-32A4868A3398"
            },
            {
              "criteria": "cpe:2.3:a:zlib:zlib:1.2.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6C77C974-9A8A-4F22-A680-5095552589BB"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.",
      "lastModified": "2007-03-14T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}