CVE-2023-40802 Memory corruption in n/a

Medium 6.5 Published 25 Aug 2023 Updated 2 Oct 2024

A heap overflow in the get_parentControl_list_Info function allows authenticated attackers to execute arbitrary code on Tenda AC23 routers.

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-2023-40802?

CVE-2023-40802 is a medium-severity memory corruption vulnerability in n/a, published on 25 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The get_parentControl_list_Info function does not verify the parameters entered by the user, causing a post-authentication heap overflow vulnerability in Tenda AC23 v16.03.07.45_cn

Weakness: CWE-787

Which versions are affected by CVE-2023-40802?

It affects 1 product.

Products include Tenda Ac23 Firmware.

How do I fix CVE-2023-40802?

No fix has been published for CVE-2023-40802 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-2023-40802 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-40802 exists.

Sources

Also known as GHSA-47pp-3hj5-634q.