CVE-2022-36233 Memory corruption in n/a

Medium 5.5 Published 19 Aug 2022 Updated 9 Jul 2026

A buffer overflow in the Tenda AC9 router's httpd service allows attackers to execute arbitrary code via the form_fast_setting_wifi_set endpoint.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-36233?

CVE-2022-36233 is a medium-severity memory corruption vulnerability in n/a, published on 19 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Tenda AC9 V15.03.2.13 is vulnerable to Buffer Overflow via httpd, form_fast_setting_wifi_set. httpd.

Weakness: CWE-787

Which versions are affected by CVE-2022-36233?

It affects 1 product.

Products include Tendacn Ac9 Firmware.

How do I fix CVE-2022-36233?

No fix has been published for CVE-2022-36233 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-2022-36233 being exploited?

There is no known exploitation of CVE-2022-36233 in the wild and no public exploit code.

Sources

Also known as GHSA-p74g-vq49-qc26.