CVE-2012-4969

CRITICALNVD 8.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 82%CVSS: 8.1Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.

CVSS v3
8.1
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
82%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

September 18, 2012

Last Modified

April 21, 2026

Advisory Details (3)

Auto-updated May 19, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet. Sources: cert.
generic🔴 Active Exploitation

New Internet Explorer Zero-Day Being Exploited in the Wild - SecurityWeek

http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild
generic
http://www.securitytracker.com/id?1027538
cert🔴 Active Exploitation

VU#480095 - Microsoft Internet Explorer 6/7/8/9 contain a use-after-free vulnerability

http://www.kb.cert.org/vuls/id/480095

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 53× in last 7d / 219× 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 651 total refreshes for this CVE.

  1. 2026-08-26 01:00 UTCGHSA enrichment
  2. 2026-08-25 21:05 UTCGHSA enrichment
  3. 2026-08-25 17:10 UTCGHSA enrichment
  4. 2026-08-25 13:15 UTCGHSA enrichment
  5. 2026-08-25 09:20 UTCGHSA enrichment
  6. 2026-08-25 05:26 UTCGHSA enrichment
  7. 2026-08-25 01:31 UTCGHSA enrichment
  8. 2026-08-24 21:37 UTCGHSA enrichment
  9. 2026-08-24 18:52 UTCCISA KEV update
  10. 2026-08-24 17:42 UTCEG score recompute
  11. 2026-08-24 17:42 UTCGHSA enrichment
  12. 2026-08-24 13:48 UTCGHSA enrichment
  13. 2026-08-24 09:54 UTCEG score recompute
  14. 2026-08-24 09:54 UTCGHSA enrichment
  15. 2026-08-24 05:59 UTCGHSA enrichment
  16. 2026-08-24 02:00 UTCGHSA enrichment
  17. 2026-08-23 22:04 UTCGHSA enrichment
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  20. 2026-08-23 10:20 UTCGHSA enrichment
  21. 2026-08-23 06:22 UTCGHSA enrichment
  22. 2026-08-23 02:28 UTCGHSA enrichment
  23. 2026-08-22 22:34 UTCGHSA enrichment
  24. 2026-08-22 18:39 UTCGHSA enrichment
  25. 2026-08-22 14:44 UTCGHSA enrichment
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  1. 2026-08-22 10:49 UTCGHSA enrichment
  2. 2026-08-22 06:54 UTCGHSA enrichment
  3. 2026-08-22 02:59 UTCEG score recompute
  4. 2026-08-22 02:58 UTCGHSA enrichment
  5. 2026-08-21 23:43 UTCEPSS rescore
  6. 2026-08-21 23:03 UTCGHSA enrichment
  7. 2026-08-21 19:08 UTCGHSA enrichment
  8. 2026-08-21 16:49 UTCCISA KEV update
  9. 2026-08-21 15:13 UTCGHSA enrichment
  10. 2026-08-21 11:18 UTCGHSA enrichment
  11. 2026-08-21 07:21 UTCGHSA enrichment
  12. 2026-08-21 03:26 UTCGHSA enrichment
  13. 2026-08-20 23:31 UTCGHSA enrichment
  14. 2026-08-20 19:37 UTCGHSA enrichment
  15. 2026-08-20 17:06 UTCCISA KEV update
  16. 2026-08-20 15:42 UTCGHSA enrichment
  17. 2026-08-20 11:47 UTCGHSA enrichment
  18. 2026-08-20 07:52 UTCGHSA enrichment
  19. 2026-08-20 03:58 UTCGHSA enrichment
  20. 2026-08-20 00:03 UTCGHSA enrichment
  21. 2026-08-19 20:08 UTCEG score recompute
  22. 2026-08-19 20:08 UTCGHSA enrichment
  23. 2026-08-19 17:33 UTCCISA KEV update
  24. 2026-08-19 16:59 UTCEPSS rescore
  25. 2026-08-19 16:12 UTCGHSA enrichment
  26. 2026-08-19 12:17 UTCGHSA enrichment
  27. 2026-08-19 08:23 UTCGHSA enrichment
  28. 2026-08-19 04:28 UTCGHSA enrichment
  29. 2026-08-19 00:30 UTCGHSA enrichment
  30. 2026-08-18 20:34 UTCGHSA enrichment
  31. 2026-08-18 16:58 UTCCISA KEV update
  32. 2026-08-18 16:40 UTCEG score recompute
  33. 2026-08-18 16:39 UTCGHSA enrichment
  34. 2026-08-18 13:42 UTCEPSS rescore
  35. 2026-08-18 12:42 UTCGHSA enrichment
  36. 2026-08-18 08:46 UTCGHSA enrichment
  37. 2026-08-18 04:51 UTCGHSA enrichment
  38. 2026-08-18 00:56 UTCGHSA enrichment
  39. 2026-08-17 21:00 UTCGHSA enrichment
  40. 2026-08-17 17:06 UTCGHSA enrichment
  41. 2026-08-17 13:56 UTCCISA KEV update
  42. 2026-08-17 13:11 UTCGHSA enrichment
  43. 2026-08-17 09:17 UTCGHSA enrichment
  44. 2026-08-17 05:23 UTCGHSA enrichment
  45. 2026-08-17 01:28 UTCGHSA enrichment
  46. 2026-08-16 21:33 UTCGHSA enrichment
  47. 2026-08-16 17:38 UTCGHSA enrichment
  48. 2026-08-16 13:43 UTCGHSA enrichment
  49. 2026-08-16 09:48 UTCGHSA enrichment
  50. 2026-08-16 05:54 UTCEG score recompute
  51. 2026-08-16 05:54 UTCGHSA enrichment
  52. 2026-08-16 02:09 UTCEPSS rescore
  53. 2026-08-16 02:00 UTCGHSA enrichment
  54. 2026-08-15 22:05 UTCGHSA enrichment
  55. 2026-08-15 18:10 UTCGHSA enrichment
  56. 2026-08-15 14:15 UTCGHSA enrichment
  57. 2026-08-15 10:20 UTCGHSA enrichment
  58. 2026-08-15 06:25 UTCGHSA enrichment
  59. 2026-08-15 02:11 UTCEG score recompute
  60. 2026-08-15 02:11 UTCGHSA enrichment
  61. 2026-08-15 01:25 UTCEPSS rescore
  62. 2026-08-14 22:17 UTCGHSA enrichment
  63. 2026-08-14 18:22 UTCGHSA enrichment
  64. 2026-08-14 14:28 UTCGHSA enrichment
  65. 2026-08-14 10:34 UTCGHSA enrichment
  66. 2026-08-14 06:39 UTCGHSA enrichment
  67. 2026-08-14 02:45 UTCGHSA enrichment
  68. 2026-08-13 22:50 UTCGHSA enrichment
  69. 2026-08-13 18:55 UTCGHSA enrichment
  70. 2026-08-13 15:00 UTCGHSA enrichment
  71. 2026-08-13 11:05 UTCGHSA enrichment
  72. 2026-08-13 07:11 UTCGHSA enrichment
  73. 2026-08-13 03:16 UTCGHSA enrichment
  74. 2026-08-12 23:22 UTCGHSA enrichment
  75. 2026-08-12 19:28 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-21840✓ verified
    First seen Oct 10, 2012

    Microsoft Internet Explorer - execCommand Use-After-Free (MS12-063) (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/browser/ie_execcommand_uaf✓ verified
    First seen Sep 14, 2012

    MS12-063 Microsoft Internet Explorer execCommand Use-After-Free Vulnerability

    Open source ↗

Frequently asked(6)

What is CVE-2012-4969?
CVE-2012-4969 is a critical vulnerability published on September 18, 2012. Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.
When was CVE-2012-4969 disclosed?
CVE-2012-4969 was first published in the National Vulnerability Database on September 18, 2012, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-4969 actively exploited?
Yes. CISA added CVE-2012-4969 to the Known Exploited Vulnerabilities catalog on June 8, 2022, affecting Microsoft Internet Explorer. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2012-4969?
CVE-2012-4969 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2012-4969?
CVE-2012-4969 affects Microsoft Internet Explorer. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2012-4969?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-4969, 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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