CVE-2001-0843: Squid Web Proxy

Medium severity, CVSS 5.0. EPSS: 2.8% chance of exploitation in the next 30 days.

Squid proxy server 2.4 and earlier allows remote attackers to cause a denial of service (crash) via a mkdir-only FTP PUT request.

Affected products

• Squid Squid Web Proxy: up to and including 2.4

Published 2001-12-06. Last modified 2026-06-16.