CVE-2025-5671 TOTOLINK N302R Plus HTTP POST Request formPortFw buffer overflow
Remote attackers can trigger a buffer overflow in the TOTOLINK N302R Plus router via HTTP POST requests, potentially leading to code execution or denial of service.
- 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-2025-5671?
CVE-2025-5671 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, which was classified as critical, was found in TOTOLINK N302R Plus up to 3.4.0-B20201028. Affected is an unknown function of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-5671?
It affects 1 product.
Products include Totolink N302r Plus Firmware.
How do I fix CVE-2025-5671?
No fix has been published for CVE-2025-5671 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-2025-5671 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5671 exists.
Other vulnerabilities in TOTOLINK N302R Plus
Sources
Also known as GHSA-fqr7-x5vp-p2wq.