CVE-2010-1256: Microsoft Internet Information Server

High severity, CVSS 8.5. EPSS: 28.2% chance of exploitation in the next 30 days.

Unspecified vulnerability in Microsoft IIS 6.0, 7.0, and 7.5, when Extended Protection for Authentication is enabled, allows remote authenticated users to execute arbitrary code via unknown vectors related to "token checking" that trigger memory corruption, aka "IIS Authentication Memory Corruption Vulnerability."

Affected products

• Microsoft Internet Information Server: version 6.0 only

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