CVE-2026-19961 Edimax EW-7478APC formWlSiteSurvey buffer overflow
Remote attackers can trigger a buffer overflow in the Edimax EW-7478APC via the selSSID parameter, 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-2026-19961?
CVE-2026-19961 is a critical memory corruption vulnerability in Edimax EW-7478APC, published on 16 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in Edimax EW-7478APC 1.04. Affected is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey. Performing a manipulation of the argument selSSID results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-19961?
How do I fix CVE-2026-19961?
No fix has been published for CVE-2026-19961 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-2026-19961 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19961 exists.
Sources
Also known as GHSA-3xmw-9fqv-62rq.