CVE-2010-3962

HIGHNVD 8.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-10-06), 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 — 3 sources updated this weekExploited in the wild
8.1
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 97%CVSS: 8.1Exploit: NoneExposed: 0

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

Use-after-free vulnerability in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code via vectors related to Cascading Style Sheets (CSS) token sequences and the clip attribute, aka an "invalid flag reference" issue or "Uninitialized Memory Corruption Vulnerability," as exploited in the wild in November 2010.

CVSS v3
8.1
EG Score
9.0(high)
EPSS
99.9%
KEV
⚠ Exploited

Published

November 5, 2010

Last Modified

April 22, 2026

Advisory Details (7)

Auto-updated May 19, 2026
🔬 Proof of concept available. No patch confirmed yet. Sources: cert.
generic
http://www.securitytracker.com/id?1024676
generic
http://www.securityfocus.com/bid/44536
cert

VU#899748 - Microsoft Internet Explorer invalid flag reference vulnerability

http://www.kb.cert.org/vuls/id/899748
generic🟡 PoC Available

Microsoft Internet Explorer 6/7/8 - Memory Corruption - Windows remote Exploit

http://www.exploit-db.com/exploits/15421
generic🟡 PoC Available

Microsoft Internet Explorer - Memory Corruption - Windows dos Exploit

http://www.exploit-db.com/exploits/15418
generic

About Secunia Research | Flexera

http://secunia.com/advisories/42091
generic

Archived MSDN and TechNet Blogs | Microsoft Learn

http://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspx

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 95× in last 7d / 397× 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 656 total refreshes for this CVE.

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

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-16551✓ verified
    First seen Jan 20, 2011

    Microsoft Internet Explorer - CSS SetUserClip Memory Corruption (MS10-090) (Metasploit)

    Open source ↗
  • Exploit-DBEDB-15418✓ verified
    First seen Nov 4, 2010

    Microsoft Internet Explorer - Memory Corruption

    Open source ↗
  • Exploit-DBEDB-15421✓ verified
    First seen Nov 4, 2010

    Microsoft Internet Explorer 6/7/8 - Memory Corruption

    Open source ↗
  • Metasploitexploit/windows/browser/ms10_090_ie_css_clip✓ verified
    First seen Nov 3, 2010

    MS10-090 Microsoft Internet Explorer CSS SetUserClip Memory Corruption

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2010-3962?
CVE-2010-3962 is a high vulnerability published on November 5, 2010. Use-after-free vulnerability in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code via vectors related to Cascading Style Sheets (CSS) token sequences and the clip attribute, aka an "invalid flag reference" issue or "Uninitialized Memory Corruption…
When was CVE-2010-3962 disclosed?
CVE-2010-3962 was first published in the National Vulnerability Database on November 5, 2010, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2010-3962 actively exploited?
Yes. CISA added CVE-2010-3962 to the Known Exploited Vulnerabilities catalog on October 6, 2025, 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-2010-3962?
CVE-2010-3962 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-2010-3962?
CVE-2010-3962 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-2010-3962?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2010-3962, 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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