CVE-2025-6486 TOTOLINK A3002R formWlanMultipleAP stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the TOTOLINK A3002R router via the formWlanMultipleAP function, potentially leading to code execution.

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-2025-6486?

CVE-2025-6486 is a high-severity memory corruption vulnerability in Totolink A3002r Firmware, published on 22 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in TOTOLINK A3002R 1.1.1-B20200824.0128. It has been declared as critical. This vulnerability affects the function formWlanMultipleAP of the file /boafrm/formWlanMultipleAP. The manipulation of the argument submit-url leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-6486?

It affects 1 product.

Products include Totolink A3002r Firmware.

How do I fix CVE-2025-6486?

No fix has been published for CVE-2025-6486 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-2025-6486 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6486 exists.

All Totolink A3002r Firmware vulnerabilities

Sources

Also known as GHSA-fmh2-32mp-xrcx.

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