CVE-2004-0541: National Science Foundation Squid Web Proxy Cache

High severity, CVSS 10.0. EPSS: 71.1% chance of exploitation in the next 30 days.

Buffer overflow in the ntlm_check_auth (NTLM authentication) function for Squid Web Proxy Cache 2.5.x and 3.x, when compiled with NTLM handlers enabled, allows remote attackers to execute arbitrary code via a long password ("pass" variable).

Affected products

• National Science Foundation Squid Web Proxy Cache: version 2.5_stable only; version 3_pre only

Published 2004-08-06. Last modified 2026-06-16.