CVE-2012-1420

MEDIUMCVSS v2 · 4.34.3—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.3 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:N/I:P/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 97.1% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Elevated
4.3EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 97%
CISA-KEV: Not listedEPSS PROB: 97%CVSS v2: 4.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, Command Antivirus 5.2.11.5, F-Prot Antivirus 4.6.2.117, Fortinet Antivirus 4.2.254.0, K7 AntiVirus 9.77.3565, Kaspersky Anti-Virus 7.0.0.125, Antimalware Engine 1.1.6402.0 in Microsoft Security Essentials 2.0, NOD32 Antivirus 5795, Norman Antivirus 6.06.12, Panda Antivirus 10.0.2.7, and Rising Antivirus 22.83.00.03 allows remote attackers to bypass malware detection via a POSIX TAR file with an initial \7fELF 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.

CVSS v2.0 (legacy)
4.3MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.3(low)
EG Risk
63(Track)
EG Risk 63/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation97% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
97%
EPSS %ILE
100%
KEV
Not listed

Published

March 21, 2012

Last Modified

April 29, 2026

References (12)

Data Freshness Timeline

(refreshed 1× in last 7d / 1× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-23 00:12 UTCEPSS rescore
  2. 2026-07-26 13:45 UTCEG score recompute▲ 4.30
  3. 2026-07-23 01:06 UTCEG score recompute▼ 9.00
  4. 2026-07-23 00:10 UTCEG score recompute
  5. 2026-07-22 21:35 UTCEG score recompute▲ 9.00
  6. 2026-07-22 21:35 UTCGHSA enrichment
  7. 2026-07-22 14:04 UTCEPSS rescore
  8. 2026-07-22 14:04 UTCEPSS rescore
  9. 2026-06-25 13:46 UTCEPSS rescore
  10. 2026-06-25 13:46 UTCEPSS rescore
  11. 2026-06-23 21:30 UTCEPSS rescore
  12. 2026-06-15 17:44 UTCEPSS rescore
  13. 2026-06-14 23:14 UTCEPSS rescore
  14. 2026-06-14 23:14 UTCEPSS rescore
  15. 2026-06-12 23:08 UTCEPSS rescore
  16. 2026-06-11 13:56 UTCEPSS rescore
  17. 2026-06-10 22:14 UTCEPSS rescore
  18. 2026-06-10 13:18 UTCEPSS rescore
  19. 2026-06-07 15:22 UTCEPSS rescore
  20. 2026-06-07 15:22 UTCEPSS rescore
  21. 2026-06-06 13:45 UTCEPSS rescore
  22. 2026-06-06 13:45 UTCEPSS rescore
  23. 2026-06-05 22:44 UTCEPSS rescore
  24. 2026-06-05 22:44 UTCEPSS rescore
  25. 2026-06-05 06:08 UTCEPSS rescore
Show 34 more
  1. 2026-06-05 06:08 UTCEPSS rescore
  2. 2026-06-04 13:09 UTCEPSS rescore
  3. 2026-06-02 20:10 UTCEPSS rescore
  4. 2026-06-02 20:10 UTCEPSS rescore
  5. 2026-06-01 13:49 UTCEPSS rescore
  6. 2026-05-31 22:28 UTCEPSS rescore
  7. 2026-05-31 22:28 UTCEPSS rescore
  8. 2026-05-31 00:14 UTCEPSS rescore
  9. 2026-05-31 00:14 UTCEPSS rescore
  10. 2026-05-29 13:41 UTCEPSS rescore
  11. 2026-05-29 05:05 UTCEG score recompute
  12. 2026-05-29 05:05 UTCGHSA enrichment
  13. 2026-05-28 13:42 UTCEPSS rescore
  14. 2026-05-28 13:42 UTCEPSS rescore
  15. 2026-05-27 13:38 UTCEPSS rescore
  16. 2026-05-27 13:38 UTCEPSS rescore
  17. 2026-05-26 13:41 UTCEPSS rescore
  18. 2026-05-26 13:41 UTCEPSS rescore
  19. 2026-05-26 07:16 UTCEPSS rescore
  20. 2026-05-26 07:16 UTCEPSS rescore
  21. 2026-05-26 07:16 UTCEPSS rescore
  22. 2026-05-24 16:43 UTCEPSS rescore
  23. 2026-05-22 21:15 UTCEPSS rescore
  24. 2026-05-22 21:15 UTCEPSS rescore
  25. 2026-05-22 21:15 UTCEPSS rescore
  26. 2026-05-21 22:39 UTCEPSS rescore
  27. 2026-05-20 22:37 UTCEPSS rescore
  28. 2026-05-20 22:37 UTCEPSS rescore
  29. 2026-05-20 22:37 UTCEPSS rescore
  30. 2026-05-20 11:21 UTCEPSS rescore
  31. 2026-05-20 11:21 UTCEPSS rescore
  32. 2026-05-20 11:21 UTCEPSS rescore
  33. 2026-05-18 21:29 UTCEPSS rescore
  34. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2012-1420?
CVE-2012-1420 is a medium vulnerability published on March 21, 2012. The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, Command Antivirus 5.2.11.5, F-Prot Antivirus 4.6.2.117, Fortinet Antivirus 4.2.254.0, K7 AntiVirus 9.77.3565, Kaspersky Anti-Virus 7.0.0.125, Antimalware Engine 1.1.6402.0 in Microsoft Security Essentials 2.0, NOD32 Antivirus 5795, Norman…
When was CVE-2012-1420 disclosed?
CVE-2012-1420 was first published in the National Vulnerability Database on March 21, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-1420 actively exploited?
CVE-2012-1420 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97% probability of exploitation in the next 30 days, which ranks it in the top 0.1% of all scored CVEs.
How do I remediate CVE-2012-1420?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-1420, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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