CVE-2012-4953: Symantec Antivirus

High severity, CVSS 9.3. EPSS: 6% chance of exploitation in the next 30 days.

The decomposer engine in Symantec Endpoint Protection (SEP) 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Symantec AntiVirus Corporate Edition (SAVCE) 10.x, and Symantec Scan Engine (SSE) before 5.2.8 does not properly perform bounds checks of the contents of CAB archives, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted file.

Affected products

• Symantec Antivirus: version 10.1.0 only; version 10.1.4 only; version 10.1.5 only; version 10.1.6 only; version 10.1.7 only; version 10.1.8 only; …
• Symantec Endpoint Protection: version 11.0 only; version 12.0 only
• Symantec Scan Engine: up to and including 5.2

Published 2012-11-14. Last modified 2026-06-16.