CVE-2025-6149 TOTOLINK A3002R HTTP POST Request formSysLog buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the TOTOLINK A3002R 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-2025-6149?

CVE-2025-6149 is a high-severity memory corruption vulnerability in Totolink A3002r Firmware, 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 classified as critical has been found in TOTOLINK A3002R 4.0.0-B20230531.1404. Affected is an unknown function of the file /boafrm/formSysLog 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-2025-6149?

It affects 1 product.

Products include Totolink A3002r Firmware.

How do I fix CVE-2025-6149?

No fix has been published for CVE-2025-6149 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-2025-6149 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6149 exists.

All Totolink A3002r Firmware vulnerabilities

Sources

Also known as GHSA-pvf7-6853-rvq4.

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