CVE-2010-3962
High 8.1 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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.
Metrics
- CVSS 3.1
-
8.1 (HIGH)
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 97% (percentile: 100) as of 1 November 2026
- CWE
- CWE-416
Affected products
microsoft: internet explorer; microsoft: windows server 2003; microsoft: windows xp; microsoft: windows server 2008; microsoft: windows vista; microsoft: windows 7
References
- http://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-… Vendor Advisory
- http://secunia.com/advisories/42091 Broken LinkVendor Advisory
- http://www.microsoft.com/technet/security/advisory/2458511.mspx PatchVendor Advisory
- http://www.vupen.com/english/advisories/2010/2880 Broken LinkVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-0… PatchVendor Advisory
- http://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-… Vendor Advisory
- http://secunia.com/advisories/42091 Broken LinkVendor Advisory
- http://www.microsoft.com/technet/security/advisory/2458511.mspx PatchVendor Advisory
- http://www.vupen.com/english/advisories/2010/2880 Broken LinkVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-0… PatchVendor Advisory