CVE-2025-6953 TOTOLINK A3002RU HTTP POST Request formParentControl buffer overflow

High 8.7 Published 1 Jul 2025 Updated 1 Jul 2025

Remote attackers can trigger a buffer overflow in the TOTOLINK A3002RU router via a crafted HTTP POST request, 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-2025-6953?

CVE-2025-6953 is a high-severity memory corruption vulnerability in TOTOLINK A3002RU, published on 1 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability, which was classified as critical, was found in TOTOLINK A3002RU 3.0.0-B20230809.1615. Affected is an unknown function of the file /boafrm/formParentControl of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-6953?

It affects 1 product.

Products include Totolink A3002ru Firmware.

How do I fix CVE-2025-6953?

No fix has been published for CVE-2025-6953 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-2025-6953 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6953 exists.

Sources

Also known as GHSA-83pv-rgxm-9x6f.