CVE-2025-5910 TOTOLINK EX1200T HTTP POST Request formWsc buffer overflow

High 8.7 Published 10 Jun 2025 Updated 10 Jun 2025

A remote attacker can trigger a buffer overflow in the HTTP POST handler of the TOTOLINK EX1200T, 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-2025-5910?

CVE-2025-5910 is a high-severity memory corruption vulnerability in TOTOLINK EX1200T, published on 10 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 EX1200T up to 4.1.2cu.5232_B20210713 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formWsc of the component HTTP POST Request Handler. The manipulation 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-2025-5910?

It affects 1 product.

Products include Totolink Ex1200t Firmware.

How do I fix CVE-2025-5910?

No fix has been published for CVE-2025-5910 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-2025-5910 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5910 exists.

Sources

Also known as GHSA-457f-pcj5-v75v.