CVE-2026-12809 Edimax BR-6478AC V2 POST Request wiz_5in1_redirect command injection
Remote attackers can execute arbitrary commands on Edimax BR-6478AC V2 routers via the wiz_5in1_redirect handler, requiring authentication.
- 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-2026-12809?
CVE-2026-12809 is a medium-severity command injection vulnerability in Edimax BR-6478AC V2, published on 21 Jun 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 V2 1.23. Affected is the function wiz_5in1_redirect of the file /goform/wiz_5in1_redirect of the component POST Request Handler. Such manipulation of the argument newpass leads to command injection. The attack can be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-12809?
How do I fix CVE-2026-12809?
No fix has been published for CVE-2026-12809 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-12809 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12809 exists.
Sources
Also known as GHSA-fqw2-w9cp-ggvm.