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CVE-2012-6706

Estado: ModificadaCrítica (9.8)—

A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the "DestPos" variable, which allows the attacker to write out of bounds when setting Mem[DestPos].

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)

Rarlab — UnrarSophos — Threat Detection Engine

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2012-6706",
  "cveTags": [],
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          "value": "CWE-190"
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      ]
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  ],
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      "lang": "en",
      "value": "A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the \"DestPos\" variable, which allows the attacker to write out of bounds when setting Mem[DestPos]."
    },
    {
      "lang": "es",
      "value": "Una corrupción de memoria VMSF_DELTA descubierta en unrar versiones anteriores a 5.5.5, utilizada en Sophos Anti-Virus Threat Detection Engine versiones anteriores a 3.37.2 y otros productos, puede permitir la ejecución de código arbitrario. Un desbordamiento de enteros puede producirse en DataSize + CurChannel. El resultado es un valor negativo de la variable \"DestPos\", que permite al atacante escribir fuera de límites al configurar Mem [DestPos]."
    }
  ],
  "lastModified": "2026-06-16T23:48:38.560",
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}