CVE-2026-78050: 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. The affected element is the function sub_41AD7C of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component Web Management. The manipulation of the argument timestr/ntp_client_enabled results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used.

Affected products

• Comfast Cf-n1-S: version 2.6.0.1 only

Published 2026-08-23. Last modified 2026-08-24.