Is CVE-2012-4953 actively exploited?

No active exploitation of CVE-2012-4953 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2012-4953 be exploited remotely?

Yes. CVE-2012-4953 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2012-4953?

CVE-2012-4953 has a CVSS score of 9.3 (CRITICAL).

HOME VULNERABILITIESCVE-2012-4953

CRITICAL

CVE-2012-4953

CWE-119Published: November 14, 2012· Updated: Jun 16, 2026

9.3

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2012-4953 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.