CVE-2024-0577 Totolink LR1200GB cstecgi.cgi setLanguageCfg stack-based overflow

High 8.8 Published 16 Jan 2024 Updated 2 Jun 2025

Remote attackers can trigger a stack-based buffer overflow in the Totolink LR1200GB router's language configuration handler, potentially leading to 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-2024-0577?

CVE-2024-0577 is a high-severity memory corruption vulnerability in Totolink LR1200GB, published on 16 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Totolink LR1200GB 9.1.0u.6619_B20230130. It has been rated as critical. This issue affects the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument lang leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-250793 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-2024-0577?

It affects 1 product.

Products include Totolink Lr1200gb Firmware.

How do I fix CVE-2024-0577?

No fix has been published for CVE-2024-0577 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-2024-0577 being exploited?

There is no known exploitation of CVE-2024-0577 in the wild and no public exploit code.

Sources

Also known as GHSA-r783-c85g-qfwm.