CVE-2012-1539: Microsoft Internet Explorer

High severity, CVSS 8.1. EPSS: 25.4% chance of exploitation in the next 30 days.

Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka "CTreePos Use After Free Vulnerability."

Affected products

• Microsoft Internet Explorer: version 9 only

Published 2012-11-14. Last modified 2026-06-16.