CVE-2025-4462 TOTOLINK N150RT formWsc buffer overflow

High 8.7 Published 9 May 2025 Updated 9 May 2025

Remote attackers can trigger a buffer overflow in the TOTOLINK N150RT router via the formWsc interface, potentially leading to arbitrary code execution.

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-2025-4462?

CVE-2025-4462 is a high-severity memory corruption vulnerability in TOTOLINK N150RT, published on 9 May 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, has been found in TOTOLINK N150RT 3.4.0-B20190525. This issue affects some unknown processing of the file /boafrm/formWsc. The manipulation of the argument localPin leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-4462?

It affects 1 product.

Products include Totolink N150rt Firmware.

How do I fix CVE-2025-4462?

No fix has been published for CVE-2025-4462 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-2025-4462 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4462 exists.

Sources

Also known as GHSA-g78q-vwc9-9f65.