CVE-2012-4431

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 9.1% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Triggered by: NVD CVSS v2.0 (legacy fallback)
Sources: epss, nvd_v2
Trending — 5 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 9.1%CVSS v2: 4.3Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

org/apache/catalina/filters/CsrfPreventionFilter.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.32 allows remote attackers to bypass the cross-site request forgery (CSRF) protection mechanism via a request that lacks a session identifier.

CVSS v2.0 (legacy)
4.3MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.3MEDIUMlow confidence
EG Risk
50
EG Risk 50/100CISA SSVC

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%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
9.1%
EPSS %ILE
95th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

December 19, 2012

Last Modified

October 9, 2026

References (50)

Vendor Advisories for CVE-2012-4431(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(10)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibtomcat6-java (6.0.24-2ubuntu1.12) @ lucid2026-10-09ubuntu
redhatpatch2013-12-17redhat
redhatpatch2013-10-16redhat
redhatpatch2013-03-20redhat
redhatpatch2013-03-14redhat
redhatjbossweb-0:7.0.17-4.Final_redhat_3.ep6.el62013-03-14redhat
redhattomcat6-0:6.0.35-29_patch_06.ep6.el62013-02-19redhat
redhattomcat7-0:7.0.30-5_patch_02.ep6.el62013-02-19redhat
redhatpatch2013-02-19redhat
redhatpatch2013-02-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.apache.tomcat:tomcat—
  • 6.0.0 up to 6.0.36: fixed in 6.0.36
  • 7.0.0 up to 7.0.32: fixed in 7.0.32
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(8)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 21× 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.

Showing the most recent 100 of 140 total refreshes for this CVE.

  1. 2026-10-09 20:34 UTCVendor advisory
  2. 2026-10-09 20:33 UTCNVD update
  3. 2026-10-09 20:00 UTCEPSS rescore
  4. 2026-10-09 19:19 UTCEG score recompute
  5. 2026-10-09 19:19 UTCVendor advisory
  6. 2026-10-09 19:18 UTCMITRE cvelistV5
  7. 2026-10-08 16:34 UTCEPSS rescore
  8. 2026-10-07 23:39 UTCEPSS rescore
  9. 2026-10-06 15:10 UTCEPSS rescore
  10. 2026-10-05 17:37 UTCEPSS rescore
  11. 2026-10-03 14:20 UTCEPSS rescore
  12. 2026-09-29 08:31 UTCEG score recompute
  13. 2026-09-28 13:44 UTCEPSS rescore
  14. 2026-09-27 13:39 UTCEPSS rescore
  15. 2026-09-26 15:52 UTCEPSS rescore
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  17. 2026-09-20 20:08 UTCEPSS rescore
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  20. 2026-09-13 16:40 UTCEPSS rescore
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  22. 2026-09-07 15:56 UTCEPSS rescore
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  24. 2026-09-04 13:55 UTCEPSS rescore
  25. 2026-08-28 21:34 UTCEPSS rescore
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  1. 2026-08-27 14:20 UTCEPSS rescore
  2. 2026-08-26 14:40 UTCEPSS rescore
  3. 2026-08-23 00:12 UTCEPSS rescore
  4. 2026-08-21 23:43 UTCEPSS rescore
  5. 2026-08-19 16:59 UTCEPSS rescore
  6. 2026-08-18 13:42 UTCEPSS rescore
  7. 2026-08-16 02:09 UTCEPSS rescore
  8. 2026-08-15 01:25 UTCEPSS rescore
  9. 2026-08-09 13:42 UTCEPSS rescore
  10. 2026-08-08 16:31 UTCEPSS rescore
  11. 2026-08-07 16:21 UTCEPSS rescore
  12. 2026-08-06 13:41 UTCEPSS rescore
  13. 2026-08-05 19:12 UTCEPSS rescore
  14. 2026-08-04 15:04 UTCEPSS rescore
  15. 2026-07-30 01:26 UTCEPSS rescore
  16. 2026-07-28 15:31 UTCEPSS rescore
  17. 2026-07-26 13:46 UTCEG score recompute▲ 4.30
  18. 2026-07-25 14:12 UTCEPSS rescore
  19. 2026-07-23 14:14 UTCEPSS rescore
  20. 2026-07-23 01:08 UTCEG score recompute
  21. 2026-07-23 00:11 UTCEG score recompute
  22. 2026-07-22 21:50 UTCEG score recompute
  23. 2026-07-22 14:04 UTCEPSS rescore
  24. 2026-07-22 14:04 UTCEPSS rescore
  25. 2026-07-21 15:21 UTCEPSS rescore
  26. 2026-07-20 17:03 UTCEPSS rescore
  27. 2026-07-20 17:03 UTCEPSS rescore
  28. 2026-07-19 14:27 UTCEPSS rescore
  29. 2026-07-19 02:25 UTCEPSS rescore
  30. 2026-07-18 10:00 UTCEPSS rescore
  31. 2026-07-16 16:58 UTCEPSS rescore
  32. 2026-07-15 16:54 UTCEPSS rescore
  33. 2026-07-15 16:54 UTCEPSS rescore
  34. 2026-07-15 01:56 UTCEPSS rescore
  35. 2026-07-13 22:25 UTCEPSS rescore
  36. 2026-07-11 08:22 UTCEPSS rescore
  37. 2026-07-09 19:05 UTCEPSS rescore
  38. 2026-07-08 15:10 UTCEPSS rescore
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  40. 2026-07-06 16:23 UTCEPSS rescore
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  44. 2026-07-04 06:27 UTCEPSS rescore
  45. 2026-07-02 14:01 UTCEPSS rescore
  46. 2026-07-01 15:02 UTCEPSS rescore
  47. 2026-06-30 23:19 UTCEPSS rescore
  48. 2026-06-30 23:19 UTCEPSS rescore
  49. 2026-06-29 14:02 UTCEPSS rescore
  50. 2026-06-28 14:03 UTCEPSS rescore
  51. 2026-06-28 04:53 UTCEPSS rescore
  52. 2026-06-28 04:53 UTCEPSS rescore
  53. 2026-06-27 03:05 UTCEPSS rescore
  54. 2026-06-27 03:05 UTCEPSS rescore
  55. 2026-06-25 13:46 UTCEPSS rescore
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  57. 2026-06-24 14:02 UTCEPSS rescore
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  59. 2026-06-23 21:30 UTCEPSS rescore
  60. 2026-06-22 14:22 UTCEPSS rescore
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  62. 2026-06-21 14:53 UTCEPSS rescore
  63. 2026-06-21 01:56 UTCEPSS rescore
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  65. 2026-06-18 17:49 UTCEPSS rescore
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  67. 2026-06-17 17:49 UTCEPSS rescore
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  74. 2026-06-13 22:57 UTCEPSS rescore
  75. 2026-06-12 23:08 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2012-4431?
CVE-2012-4431 is a medium vulnerability published on December 19, 2012. org/apache/catalina/filters/CsrfPreventionFilter.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.32 allows remote attackers to bypass the cross-site request forgery (CSRF) protection mechanism via a request that lacks a session identifier.
When was CVE-2012-4431 disclosed?
CVE-2012-4431 was first published on December 19, 2012, with the most recent update on October 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-4431 actively exploited?
CVE-2012-4431 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.1% probability of exploitation in the next 30 days (95th percentile of EPSS-scored CVEs).
How do I remediate CVE-2012-4431?
A fix for CVE-2012-4431 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2012-4431 are linked in the Vendor Advisories panel on this page.

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