CVE-2023-40895 Memory corruption in n/a

Critical 9.8 Published 24 Aug 2023 Updated 3 Oct 2024

A stack overflow in the Tenda AC8 router allows attackers to execute arbitrary code or cause a denial of service via the virtual server configuration endpoint.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-40895?

CVE-2023-40895 is a critical memory corruption vulnerability in Tenda Ac8 Firmware, published on 24 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter list at /goform/SetVirtualServerCfg.

Weakness: CWE-787

Which versions are affected by CVE-2023-40895?

It affects 1 product.

Products include Tenda Ac8 Firmware.

How do I fix CVE-2023-40895?

No fix has been published for CVE-2023-40895 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-2023-40895 being exploited?

There is no known exploitation of CVE-2023-40895 in the wild and no public exploit code.

All Tenda Ac8 Firmware vulnerabilities

Sources

Also known as GHSA-xq68-r2fr-vhf9.