CVE-2025-6163 TOTOLINK A3002RU HTTP POST Request formMultiAP buffer overflow

High 8.7 Published 17 Jun 2025 Updated 17 Jun 2025

Remote attackers can trigger a buffer overflow in the HTTP POST handler of TOTOLINK A3002RU routers, 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-2025-6163?

CVE-2025-6163 is a high-severity memory corruption vulnerability in TOTOLINK A3002RU, published on 17 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 A3002RU 3.0.0-B20230809.1615 and classified as critical. Affected by this issue is some unknown functionality of the file /boafrm/formMultiAP of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-6163?

It affects 1 product.

Products include Totolink A3002ru Firmware.

How do I fix CVE-2025-6163?

No fix has been published for CVE-2025-6163 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-2025-6163 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6163 exists.

Sources

Also known as GHSA-hxxx-52m4-m5g9.