CVE-2010-1261: Microsoft Internet Explorer

High severity, CVSS 9.3. EPSS: 24.9% chance of exploitation in the next 30 days.

The IE8 Developer Toolbar in Microsoft Internet Explorer 8 SP1, SP2, and SP3 allows user-assisted remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "Uninitialized Memory Corruption Vulnerability."

Affected products

• Microsoft Internet Explorer: version 8 only

Published 2010-06-08. Last modified 2026-06-16.