CVE-2026-90607 Totolink A3002MU boa formNewSchedule buffer overflow

Critical 9.4 Published Updated

Remote attackers can trigger a buffer overflow in the Totolink A3002MU router's schedule form, 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-2026-90607?

CVE-2026-90607 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 vulnerability was detected in Totolink A3002MU Hh-B20211125.1046. Impacted is the function formNewSchedule of the file /boafrm/formNewSchedule of the component boa. The manipulation of the argument submit-url results in buffer overflow. The attack may be performed from remote. The exploit is now public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-90607?

How do I fix CVE-2026-90607?

No fix has been published for CVE-2026-90607 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-2026-90607 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90607 exists.

Sources

Also known as GHSA-w79w-7hq2-gg5c.

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