CVE-2001-1241: Steve Grimm Un-Cgi

High severity, CVSS 7.5. EPSS: 3.9% chance of exploitation in the next 30 days.

Un-CGI 1.9 and earlier does not verify that a CGI script has the execution bits set before executing it, which allows remote attackers to execute arbitrary commands by directing Un-CGI to a document that begins with "#!" and the desired program name.

Affected products

• Steve Grimm Un-Cgi: version 1.0 only; version 1.1 only; version 1.2 only; version 1.3 only; version 1.4 only; version 1.5 only; …

Published 2001-07-17. Last modified 2026-06-16.