CVE-2025-0848 Tenda A18 HTTP POST Request SetCmdlineRun stack-based overflow

High 7.1 Published 30 Jan 2025 Updated 30 Jan 2025

Remote attackers can trigger a stack-based buffer overflow in the Tenda A18 router via a crafted HTTP POST request, 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-2025-0848?

CVE-2025-0848 is a high-severity memory corruption vulnerability in Tenda A18, published on 30 Jan 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Tenda A18 up to 15.13.07.09. It has been rated as critical. This issue affects the function SetCmdlineRun of the file /goform/SetCmdlineRun of the component HTTP POST Request Handler. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-787, CWE-119

Which versions are affected by CVE-2025-0848?

It affects 1 product.

Products include Tenda A18 Firmware.

How do I fix CVE-2025-0848?

No fix has been published for CVE-2025-0848 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-2025-0848 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-0848 exists.

Sources

Also known as GHSA-wm69-gq95-wfj3.