CVE-2012-1423: Authentium Command Antivirus

Medium severity, CVSS 4.3. EPSS: 89.7% chance of exploitation in the next 30 days.

The TAR file parser in Command Antivirus 5.2.11.5, Emsisoft Anti-Malware 5.1.0.1, F-Prot Antivirus 4.6.2.117, Fortinet Antivirus 4.2.254.0, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0, K7 AntiVirus 9.77.3565, NOD32 Antivirus 5795, Norman Antivirus 6.06.12, PC Tools AntiVirus 7.0.3.5, Rising Antivirus 22.83.00.03, and VirusBuster 13.6.151.0 allows remote attackers to bypass malware detection via a POSIX TAR file with an initial MZ character sequence. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different TAR parser implementations.

Affected products

• Authentium Command Antivirus: version 5.2.11.5 only
• Emsisoft Anti-Malware: version 5.1.0.1 only
• Eset NOD32 Antivirus: version 5795 only
• F-Prot F-Prot Antivirus: version 4.6.2.117 only
• Fortinet Fortinet Antivirus: version 4.2.254.0 only
• Ikarus Ikarus Virus Utilities t3 Command Line Scanner: version 1.1.97.0 only
• k7computing Antivirus: version 9.77.3565 only
• Norman Norman Antivirus & Antispyware: version 6.06.12 only
• Pc Tools Pc Tools Antivirus: version 7.0.3.5 only
• Rising-Global Rising Antivirus: version 22.83.00.03 only
• Virusbuster Virusbuster: version 13.6.151.0 only

Published 2012-03-21. Last modified 2026-06-16.