CVE-2007-1692: Microsoft Windows 2000

High severity, CVSS 7.5. EPSS: 15.3% chance of exploitation in the next 30 days.

The default configuration of Microsoft Windows uses the Web Proxy Autodiscovery Protocol (WPAD) without static WPAD entries, which might allow remote attackers to intercept web traffic by registering a proxy server using WINS or DNS, then responding to WPAD requests, as demonstrated using Internet Explorer. NOTE: it could be argued that if an attacker already has control over WINS/DNS, then web traffic could already be intercepted by modifying WINS or DNS records, so this would not cross privilege boundaries and would not be a vulnerability. It has also been reported that DHCP is an alternate attack vector.

Affected products

• Microsoft Windows 2000: any version
• Microsoft Windows 2003 Server: version 2000 only; version r2 only

Published 2007-03-26. Last modified 2026-06-16.