CVE-2013-2551: Microsoft Internet Explorer Use-After-Free Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2022-03-28. EPSS: 73.9% chance of exploitation in the next 30 days.

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "Internet Explorer Use After Free Vulnerability," a different vulnerability than CVE-2013-1308 and CVE-2013-1309.

Affected products

• Microsoft Internet Explorer: version 6 only; version 7 only; version 8 only; version 9 only; version 10 only

Published 2013-03-11. Last modified 2026-06-16.