CVE-2026-94003 Comfast CF-N1-S Web Management mbox-config get_css_path_from_uri stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the web management interface, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-94003?
CVE-2026-94003 is a critical memory corruption vulnerability in Comfast CF-N1-S, published on 20 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been found in Comfast CF-N1-S 2.6.0.1. Impacted is the function get_css_path_from_uri of the file /cgi-bin/mbox-config of the component Web Management Interface. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2026-94003?
How do I fix CVE-2026-94003?
No fix has been published for CVE-2026-94003 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-94003 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-94003 exists.
Sources
Also known as GHSA-w3j5-9v4x-w7pw.