CVE-2025-5672 TOTOLINK N302R Plus HTTP POST Request formFilter buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the HTTP POST handler of TOTOLINK N302R Plus 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-2025-5672?

CVE-2025-5672 is a high-severity memory corruption vulnerability in TOTOLINK N302R Plus, published on 5 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been found in TOTOLINK N302R Plus up to 3.4.0-B20201028 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument url leads to buffer overflow. The attack can 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-2025-5672?

It affects 1 product.

Products include Totolink N302r Plus Firmware.

How do I fix CVE-2025-5672?

No fix has been published for CVE-2025-5672 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-2025-5672 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5672 exists.

Sources

Also known as GHSA-24q6-4w37-557f.

Is CVE-2025-5672 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free