CVE-2022-40851 Memory corruption in n/a

Critical 9.8 Published 23 Sep 2022 Updated 22 May 2025

A stack overflow in the Tenda AC15 router allows attackers to execute arbitrary code or cause a denial of service.

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-2022-40851?

CVE-2022-40851 is a critical memory corruption vulnerability in Tenda Ac15 Firmware, published on 23 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda AC15 V15.03.05.19 contained a stack overflow via the function fromAddressNat.

Weakness: CWE-787

Which versions are affected by CVE-2022-40851?

It affects 1 product.

Products include Tenda Ac15 Firmware.

How do I fix CVE-2022-40851?

No fix has been published for CVE-2022-40851 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-2022-40851 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-40851 exists.

All Tenda Ac15 Firmware vulnerabilities

Sources

Also known as GHSA-9vv6-62qf-hh55.