CVE-2026-77022: Comfast Cf-n1-S

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

A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is the function sub_44B438 of the file /cgi-bin/mbox-config?method=SET&section=ptest_ssid of the component SSID Configuration. The manipulation of the argument ssid results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

Affected products

• Comfast Cf-n1-S: version 2.6.0.1 only

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