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CVE-2012-1423· NVD / CVE Program· CNA mitre

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,

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.

MediumCVSS 4.3 · v2.0—No exploit No fix recorded
Published
Mar 21, 2012
Updated
Jun 16, 2026
EPSS
89.7% · 100th percentile
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Report tools

JSON

Action score

44

Plan

Add it to your regular patch cycle.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
27 / 30 · 89.7%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
emsisoftanti-malware
authentiumcommand antivirus
esetnod32 antivirus
f-protf-prot antivirus
fortinetfortinet antivirus
ikarusikarus virus utilities t3 command line scanner
k7computingantivirus
normannorman antivirus \& antispyware
pc toolspc tools antivirus
rising-globalrising antivirus
virusbustervirusbuster

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • authentium command antivirus5.2.11.5
  • emsisoft anti-malware5.1.0.1
  • eset nod32 antivirus5795
  • f-prot f-prot antivirus4.6.2.117
  • fortinet fortinet antivirus4.2.254.0
  • ikarus ikarus virus utilities t3 command line scanner1.1.97.0
  • k7computing antivirus9.77.3565
  • norman norman antivirus & antispyware6.06.12
  • pc tools pc tools antivirus7.0.3.5
  • rising-global rising antivirus22.83.00.03
  • virusbuster virusbuster13.6.151.0

Other highest-scoring records for the same primary product.

  • CVE-2012-1432The Microsoft EXE file parser in Emsisoft Anti-Malware 5.1.0.1, eSafe 7.0.17.0, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0, and
    45Plan
  • CVE-2012-1450The CAB file parser in Emsisoft Anti-Malware 5.1.0.1, Sophos Anti-Virus 4.61.0, and Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0
    39Monitor
  • CVE-2012-1451The CAB file parser in Emsisoft Anti-Malware 5.1.0.1 and Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0 allows remote attackers to
    37Monitor
  • CVE-2019-7651EPP.sys in Emsisoft Anti-Malware prior to version 2018.12 allows an attacker to bypass ACLs because Interpreted Device Characteristics lacks
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    P · data or configuration can be modified
    Availability
    none
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    P
    Availability impact
    None

    CVSS vector

    AV:N/AC:M/Au:N/C:N/I:P/A:N

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Change log

    No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

    References

    All records