CVE-2012-1879: Microsoft Internet Explorer

High severity, CVSS 8.1. EPSS: 19.6% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by attempting to access an undefined memory location, aka "insertAdjacentText Remote Code Execution Vulnerability."

Affected products

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

Published 2012-06-12. Last modified 2026-06-16.