CVE-2005-2916: Linksys WRT54G

Medium severity, CVSS 5.0. EPSS: 1.1% chance of exploitation in the next 30 days.

Linksys WRT54G 3.01.03, 3.03.6, 4.00.7, and possibly other versions before 4.20.7, does not verify user authentication until after an HTTP POST request has been processed, which allows remote attackers to (1) modify configuration using restore.cgi or (2) upload new firmware using upgrade.cgi.

Affected products

• Linksys WRT54G: version 3.01.3 only; version 3.03.6 only; version 4.00.7 only

Published 2005-09-14. Last modified 2026-06-16.