CVE-2024-1004 Totolink N200RE cstecgi.cgi loginAuth stack-based overflow

High 7.2 Published 29 Jan 2024 Updated 17 Jun 2025

Remote attackers can trigger a stack-based buffer overflow in the loginAuth function of Totolink N200RE routers, potentially leading to code execution.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-1004?

CVE-2024-1004 is a high-severity memory corruption vulnerability in Totolink N200RE, published on 29 Jan 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability, which was classified as critical, was found in Totolink N200RE 9.3.5u.6139_B20201216. This affects the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-252273 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-121

Which versions are affected by CVE-2024-1004?

It affects 1 product.

Products include Totolink N200re Firmware.

How do I fix CVE-2024-1004?

No fix has been published for CVE-2024-1004 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-2024-1004 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-1004 exists.

Sources

Also known as GHSA-8vhj-m4qr-2chr.