CVE-2010-3962

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 v3.1

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS

96.89% chance of exploitation in the next 30 days, 100th percentile

CISA KEV

added 2025-10-06

Published

2010-11-05

Updated

2025-10-22

Proof-of-concept exploits (2)

• http://www.exploit-db.com/exploits/15421
• http://www.exploit-db.com/exploits/15418

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ms10_090_ie_css_…

ExploitDB entries (3)

• https://www.exploit-db.com/exploits/16551
• https://www.exploit-db.com/exploits/15421
• https://www.exploit-db.com/exploits/15418

References

• CVE Record
• NVD entry

Related

• CVE-2010-3944
• CVE-2010-3964
• CVE-2010-3906
• CVE-2010-3967
• CVE-2010-3904
• CVE-2010-3970