CVE-2025-5000: Linksys FGW3000-Ah Firmware

Critical severity, CVSS 9.8. EPSS: 6.6% chance of exploitation in the next 30 days.

A vulnerability was found in Linksys FGW3000-AH and FGW3000-HK up to 1.0.17.000000. It has been classified as critical. This affects the function control_panel_sw of the file /cgi-bin/sysconf.cgi of the component HTTP POST Request Handler. The manipulation of the argument filename leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Linksys FGW3000-Ah Firmware: up to and including 1.0.17.000000
• Linksys FGW3000-Hk Firmware: up to and including 1.0.17.000000

Published 2025-05-20. Last modified 2026-06-17.