CVE-2012-1423

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.

Published: 2012-03-21 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-1423 is rated Moderate Risk (46.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.69%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-1423

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-06-03 4.92% 3.69% -1.24%
2 2025-03-30 5.63% 4.92% -0.71%
3 2025-03-29 — 5.63% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-1423

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2012-1423

Affected software / configurations for CVE-2012-1423

Vendor Product Version Raw CPE
authentium command_antivirus 5.2.11.5 cpe:2.3:a:authentium:command_antivirus:5.2.11.5:*:*:*:*:*:*:*
emsisoft anti-malware 5.1.0.1 cpe:2.3:a:emsisoft:anti-malware:5.1.0.1:*:*:*:*:*:*:*
eset nod32_antivirus 5795 cpe:2.3:a:eset:nod32_antivirus:5795:*:*:*:*:*:*:*
f-prot f-prot_antivirus 4.6.2.117 cpe:2.3:a:f-prot:f-prot_antivirus:4.6.2.117:*:*:*:*:*:*:*
fortinet fortinet_antivirus 4.2.254.0 cpe:2.3:a:fortinet:fortinet_antivirus:4.2.254.0:*:*:*:*:*:*:*
ikarus ikarus_virus_utilities_t3_command_line_scanner 1.1.97.0 cpe:2.3:a:ikarus:ikarus_virus_utilities_t3_command_line_scanner:1.1.97.0:*:*:*:*:*:*:*
k7computing antivirus 9.77.3565 cpe:2.3:a:k7computing:antivirus:9.77.3565:*:*:*:*:*:*:*
norman norman_antivirus_\&_antispyware 6.06.12 cpe:2.3:a:norman:norman_antivirus_\&_antispyware:6.06.12:*:*:*:*:*:*:*
pc_tools pc_tools_antivirus 7.0.3.5 cpe:2.3:a:pc_tools:pc_tools_antivirus:7.0.3.5:*:*:*:*:*:*:*
rising-global rising_antivirus 22.83.00.03 cpe:2.3:a:rising-global:rising_antivirus:22.83.00.03:*:*:*:*:*:*:*
virusbuster virusbuster 13.6.151.0 cpe:2.3:a:virusbuster:virusbuster:13.6.151.0:*:*:*:*:*:*:*

References for CVE-2012-1423

cvelogic Threat Intelligence