CVE-2026-77148: Comfast Cf-n1-S

Critical severity, CVSS 9.9. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability was found in Comfast CF-N1-S 2.6.0.1. This impacts the function sub_44B50C of the file /cgi-bin/mbox-config?method=SET&section=ptest_channel of the component Web Management. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

Affected products

• Comfast Cf-n1-S: version 2.6.0.1 only

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