CVE-2024-3876 Tenda F1202 VirtualSer fromVirtualSer stack-based overflow

High 8.8 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda F1202 router's VirtualSer interface, potentially leading to code execution or denial of service.

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-2024-3876?

CVE-2024-3876 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 has been found in Tenda F1202 1.2.0.20(408). Affected is the function fromVirtualSer of the file /goform/VirtualSer. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-260910 is the identifier assigned to this vulnerability. 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-2024-3876?

It affects 1 product.

Products include Tenda F1202 Firmware.

How do I fix CVE-2024-3876?

No fix has been published for CVE-2024-3876 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-2024-3876 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-3876 exists.

Sources

Also known as GHSA-92q3-88m7-gfwx.

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