CVE-2026-90608 Totolink A3002MU boa formPortFw buffer overflow
Remote attackers can trigger a buffer overflow in the Totolink A3002MU router's boa component via the formPortFw function, 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-2026-90608?
CVE-2026-90608 is a critical memory corruption vulnerability in Totolink A3002MU, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in Totolink A3002MU Hh-B20211125.1046. The affected element is the function formPortFw of the file /boafrm/formPortFw of the component boa. This manipulation of the argument service_type causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.
Which versions are affected by CVE-2026-90608?
How do I fix CVE-2026-90608?
No fix has been published for CVE-2026-90608 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-2026-90608 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90608 exists.
Sources
Also known as GHSA-v9cq-jhv2-723g.