CVE-2011-1966: Microsoft Windows Server 2008

High severity, CVSS 10.0. EPSS: 55.2% chance of exploitation in the next 30 days.

The DNS server in Microsoft Windows Server 2008 SP2, R2, and R2 SP1 does not properly handle NAPTR queries that trigger recursive processing, which allows remote attackers to execute arbitrary code via a crafted query, aka "DNS NAPTR Query Vulnerability."

Affected products

• Microsoft Windows Server 2008: any version; version r2 only

Published 2011-08-10. Last modified 2026-06-16.