CVE-2010-3962 KEV EXPLOIT
8.1
HIGH · CVSS 3.1 · EPSS 96.8% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2025-10-27.
Description
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.
Scoring
| CVSS | 8.1 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 96.83% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-416 |
| On CISA KEV | yes — remediate by 2025-10-27 |
| Public exploit | yes |
| Published | 2010-11-05 |
| Last modified | 2026-06-16 |
CISA KEV
| Name | Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerability |
|---|---|
| Added | 2025-10-06 |
| Due | 2025-10-27 |
| Vendor / product | Microsoft / Internet Explorer |
| Ransomware use | none reported |
Affected (6)
| Vendor | Product |
|---|---|
| microsoft | internet explorer |
| microsoft | windows 7 |
| microsoft | windows server 2003 |
| microsoft | windows server 2008 |
| microsoft | windows vista |
| microsoft | windows xp |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Internet Explorer - CSS SetUserClip Memory Corruption (MS10-090) (Metasploit) | 2011-01-20 |
| exploit-db | Microsoft Internet Explorer - Memory Corruption | 2010-11-04 |
| exploit-db | Microsoft Internet Explorer 6/7/8 - Memory Corruption | 2010-11-04 |
References
- http://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspx
- http://secunia.com/advisories/42091
- http://www.exploit-db.com/exploits/15418
- http://www.exploit-db.com/exploits/15421
- http://www.kb.cert.org/vuls/id/899748
- http://www.microsoft.com/technet/security/advisory/2458511.mspx
- http://www.securityfocus.com/bid/44536
- http://www.securitytracker.com/id?1024676
- http://www.symantec.com/connect/blogs/new-ie-0-day-used-targeted-attacks
- http://www.us-cert.gov/cas/techalerts/TA10-348A.html
- http://www.vupen.com/english/advisories/2010/2880
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-090
- https://exchange.xforce.ibmcloud.com/vulnerabilities/62962
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12279
- http://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspx
- http://secunia.com/advisories/42091
- http://www.exploit-db.com/exploits/15418
- http://www.exploit-db.com/exploits/15421
- http://www.kb.cert.org/vuls/id/899748
- http://www.microsoft.com/technet/security/advisory/2458511.mspx
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