CVE-2026-76008 Comfast CF-N1-S URI Parameter Parsing mbox-config get_para_from_uri stack-based overflow
A remote attacker can trigger a stack-based buffer overflow in the Comfast CF-N1-S router via crafted URI parameters, potentially leading to code execution.
- 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-2026-76008?
CVE-2026-76008 is a critical memory corruption vulnerability in Comfast CF-N1-S, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file /cgi-bin/mbox-config of the component URI Parameter Parsing. This manipulation of the argument width/height causes stack-based buffer overflow. The attack can be initiated remotely.
Which versions are affected by CVE-2026-76008?
How do I fix CVE-2026-76008?
No fix has been published for CVE-2026-76008 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-2026-76008 being exploited?
There is no known exploitation of CVE-2026-76008 in the wild and no public exploit code.
Sources
Also known as GHSA-m8hp-gppg-6x6v.