CVE-2026-77148: Comfast CF-N1-S Web Management mbox-config sub_44B50C stack-based overflow

Published Aug 20, 2026
·
Updated

A vulnerability was found in Comfast CF-N1-S 2.6.0.1. This impacts the function sub44B50C of the file /cgi-bin/mbox-config?method=SET&section=ptestchannel 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 Software

1 affected component
Comfast CF-N1-S=2.6.0.1

Event History

Aug 20, 2026
CVE Published
via MITRE·06:15 PM
Data Sourced
via MITRE·06:15 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Who is exposed to this issue?

Comfast CF-N1-S devices running version 2.6.0.1 with the Web Management component reachable by an attacker are exposed. The attack can be launched remotely.

2

What level of access does an attacker need?

The supplied severity vector indicates that low privileges are required and no user interaction is needed. Exploitation targets the mbox-config CGI endpoint using the SET method and ptest_channel section.

3

Is public exploit code available?

Yes. The vulnerability information states that an exploit has been made public and could be used.

Contact

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