CVE-2012-3546

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 12.0% 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 verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 12%CVSS v2: 4.3Exploit: Elevated riskExposed: 0

A fix is available — apply it.

org/apache/catalina/realm/RealmBase.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.30, when FORM authentication is used, allows remote attackers to bypass security-constraint checks by leveraging a previous setUserPrincipal call and then placing /j_security_check at the end of a URI.

CVSS v2.0 (legacy)
4.3MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.3(low)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
12%
EPSS %ILE
96%
KEV
Not listed

Published

December 19, 2012

Last Modified

April 29, 2026

References (86)

Patch Availability(21)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibtomcat7-java (7.0.30-0ubuntu1.1) @ quantal2026-05-29ubuntu
redhattomcat5-0:5.5.23-0jpp.38.el5_92013-03-12redhat
redhatpatch2013-03-12redhat
redhattomcat5-0:5.5.33-34_patch_08.ep5.el62013-03-12redhat
redhattomcat6-0:6.0.24-52.el6_42013-03-11redhat
redhatpatch2013-02-04redhat
redhatpatch2013-01-31redhat
redhatxml-security-0:1.5.1-2.ep5.el52013-01-24redhat
redhatxml-security-0:1.5.1-2.ep5.el62013-01-24redhat
redhatpatch2013-01-24redhat
redhatpatch2013-01-24redhat
redhatpatch2013-01-15redhat
redhatpatch2013-01-15redhat
redhatjbossweb-0:7.0.17-3.Final_redhat_2.ep6.el62013-01-15redhat
redhattomcat6-0:6.0.32-31_patch_08.ep5.el62013-01-14redhat
redhatpatch2013-01-14redhat
redhatpatch2013-01-10redhat
redhatjbossas-0:4.3.0-11.GA_CP10_patch_02.2.ep1.el52013-01-08redhat
redhatpatch2013-01-08redhat
redhattomcat6-0:6.0.35-25_patch_01.ep6.el62013-01-03redhat
redhatpatch2013-01-03redhat

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 rangeFixed inDependents
org.apache.tomcat:tomcat—7.0.30—

All Vendor Advisories

(23)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 11× in last 7d / 33× 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 102 total refreshes for this CVE.

  1. 2026-07-26 13:46 UTCEG score recompute▲ 4.30
  2. 2026-07-25 14:12 UTCEPSS rescore
  3. 2026-07-23 14:14 UTCEPSS rescore
  4. 2026-07-23 01:07 UTCEG score recompute
  5. 2026-07-23 00:11 UTCEG score recompute
  6. 2026-07-22 21:49 UTCEG score recompute
  7. 2026-07-22 14:04 UTCEPSS rescore
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  9. 2026-07-21 15:21 UTCEPSS rescore
  10. 2026-07-20 17:03 UTCEPSS rescore
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  1. 2026-07-04 06:27 UTCEPSS rescore
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  4. 2026-06-30 23:19 UTCEPSS rescore
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  18. 2026-06-21 14:53 UTCEPSS rescore
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  21. 2026-06-18 17:49 UTCEPSS rescore
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  23. 2026-06-17 17:49 UTCEPSS rescore
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  25. 2026-06-16 17:49 UTCEPSS rescore
  26. 2026-06-16 17:49 UTCEPSS rescore
  27. 2026-06-15 17:44 UTCEPSS rescore
  28. 2026-06-14 23:14 UTCEPSS rescore
  29. 2026-06-14 23:14 UTCEPSS rescore
  30. 2026-06-13 22:57 UTCEPSS rescore
  31. 2026-06-12 23:08 UTCEPSS rescore
  32. 2026-06-11 13:56 UTCEPSS rescore
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  35. 2026-06-08 14:14 UTCEPSS rescore
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  39. 2026-06-06 13:45 UTCEPSS rescore
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  45. 2026-06-04 13:09 UTCEPSS rescore
  46. 2026-06-02 20:10 UTCEPSS rescore
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  48. 2026-06-01 13:49 UTCEPSS rescore
  49. 2026-05-31 22:28 UTCEPSS rescore
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  51. 2026-05-31 00:14 UTCEPSS rescore
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  53. 2026-05-29 13:41 UTCEPSS rescore
  54. 2026-05-29 01:34 UTCEG score recompute
  55. 2026-05-29 01:34 UTCVendor advisory
  56. 2026-05-28 13:42 UTCEPSS rescore
  57. 2026-05-28 13:42 UTCEPSS rescore
  58. 2026-05-27 13:38 UTCEPSS rescore
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  75. 2026-05-20 11:21 UTCEPSS rescore

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2012-3546?
CVE-2012-3546 is a medium vulnerability published on December 19, 2012. org/apache/catalina/realm/RealmBase.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.30, when FORM authentication is used, allows remote attackers to bypass security-constraint checks by leveraging a previous setUserPrincipal call and then placing /jsecuritycheck at the end of a URI.
When was CVE-2012-3546 disclosed?
CVE-2012-3546 was first published in the National Vulnerability Database on December 19, 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-2012-3546 actively exploited?
CVE-2012-3546 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12% probability of exploitation in the next 30 days, which ranks it in the top 4.3% of all scored CVEs.
How do I remediate CVE-2012-3546?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-3546, 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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