CVE-2026-90606 Totolink A3002MU boa formIpv6Setup buffer overflow
Remote attackers can exploit a buffer overflow in the IPv6 setup form to execute arbitrary code on Totolink A3002MU routers.
- 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-2026-90606?
CVE-2026-90606 is a critical memory corruption vulnerability in Totolink A3002MU, published on 13 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in Totolink A3002MU Hh-B20211125.1046. This issue affects the function formIpv6Setup of the file /boafrm/formIpv6Setup of the component boa. The manipulation of the argument static_ipv6 leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2026-90606?
How do I fix CVE-2026-90606?
No fix has been published for CVE-2026-90606 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-2026-90606 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90606 exists.
Sources
Also known as GHSA-gxv2-393q-4j5x.