CVE-2026-10126 Edimax BR-6478AC POST Request formQoS buffer overflow
Remote attackers can trigger a buffer overflow in the Edimax BR-6478AC router via a crafted POST request, potentially leading to code execution or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10126?
CVE-2026-10126 is a high-severity memory corruption vulnerability in Edimax BR-6478AC, published on 30 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security flaw has been discovered in Edimax BR-6478AC 1.23. Affected by this issue is the function formQoS of the file /goform/formQoS of the component POST Request Handler. The manipulation of the argument selSSID results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-10126?
How do I fix CVE-2026-10126?
No fix has been published for CVE-2026-10126 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-2026-10126 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10126 exists.
Sources
Also known as GHSA-27vr-q2hh-fjhh.