CVE-2026-10125 Edimax BR-6478AC POST Request formPPPoESetup stack-based overflow
A remote attacker can trigger a stack-based buffer overflow in the PPPoE setup handler to potentially execute arbitrary code on the router.
- 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-2026-10125?
CVE-2026-10125 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 vulnerability was identified in Edimax BR-6478AC 1.23. Affected by this vulnerability is the function formPPPoESetup of the file /goform/formPPPoESetup of the component POST Request Handler. The manipulation of the argument pppUserName leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used.
Which versions are affected by CVE-2026-10125?
How do I fix CVE-2026-10125?
No fix has been published for CVE-2026-10125 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-2026-10125 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10125 exists.
Sources
Also known as GHSA-3qwv-jp8x-xr7q.