CVE-2011-1999: Microsoft Internet Explorer

High severity, CVSS 9.3. EPSS: 26.7% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 8 does not properly allocate and access memory, which allows remote attackers to execute arbitrary code via vectors involving a "dereferenced memory address," aka "Select Element Remote Code Execution Vulnerability."

Affected products

Published 2011-10-12. Last modified 2026-06-16.