CVE-2022-38393 Denial of service in RT-AX82U

High 7.5 Published Updated

An attacker can cause a denial of service on Asus RT-AX82U routers by sending a specially crafted network packet to the configuration 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-2022-38393?

CVE-2022-38393 is a high-severity denial of service vulnerability in Asus RT-AX82U, published on 10 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A denial of service vulnerability exists in the cfg_server cm_processConnDiagPktList opcode of Asus RT-AX82U 3.0.0.4.386_49674-ge182230 router's configuration service. A specially-crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.

Weakness: CWE-125

Which versions are affected by CVE-2022-38393?

It affects 1 product.

Products include Asus Rt-Ax82u Firmware.

How do I fix CVE-2022-38393?

No fix has been published for CVE-2022-38393 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-38393 being exploited?

There is no known exploitation of CVE-2022-38393 in the wild and no public exploit code.

Sources

Also known as GHSA-hv5w-v9vx-jh7r.

Is CVE-2022-38393 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free