CVE-2026-77004: Comfast Cf-n1-S

High severity, CVSS 7.4. EPSS: 1.8% chance of exploitation in the next 30 days.

A flaw has been found in Comfast CF-N1-S 2.6.0.1. This impacts the function sprintf of the file /cgi-bin/mbox-config?method=SET&section=ptest_sn. Executing a manipulation of the argument sn can lead to command injection. The attack can be launched remotely. The exploit has been published and may be used.

Affected products

• Comfast Cf-n1-S: version 2.6.0.1 only

Published 2026-08-20. Last modified 2026-08-24.