CVE-2024-3877 Tenda F1202 fromqossetting stack-based overflow

High 8.8 Published 16 Apr 2024 Updated 1 Aug 2024

Remote attackers can trigger a stack-based buffer overflow in the Tenda F1202 router's QoS settings, 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-2024-3877?

CVE-2024-3877 is a high-severity memory corruption vulnerability in Tenda F1202, published on 16 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability classified as critical was found in Tenda F1202 1.2.0.20(408). Affected by this vulnerability is the function fromqossetting of the file /goform/fromqossetting. The manipulation of the argument qos leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-260911. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2024-3877?

It affects 1 product.

Products include Tenda F1202 Firmware.

How do I fix CVE-2024-3877?

No fix has been published for CVE-2024-3877 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-2024-3877 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-3877 exists.

Sources

Also known as GHSA-3v43-hgv9-g7jj.