VULNERABILITY INTELLIGENCE

CVE-2012-6706

CVSS score9.8 CRITICAL
EPSS probability10.11%
CISA KEVNot currently listed
Published2017-06-22
Last modified2026-06-16
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

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].

Weakness classification

  • CWE-190: Integer Overflow or Wraparound

Primary references