CVE-2022-26346 Denial of service in LinkHub Mesh Wifi

Critical 9.6 Published 5 Aug 2022 Updated 15 Apr 2025

An attacker can cause a denial of service in TCL LinkHub Mesh Wi-Fi devices by sending specially crafted network packets.

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

What is CVE-2022-26346?

CVE-2022-26346 is a critical denial of service vulnerability in TCL LinkHub Mesh Wifi, published on 5 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A denial of service vulnerability exists in the ucloud_del_node functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A specially-crafted network packet can lead to denial of service. An attacker can send packets to trigger this vulnerability.

Weakness: CWE-284

Which versions are affected by CVE-2022-26346?

It affects 1 product.

Products include Tcl Linkhub Mesh Wifi Ac1200.

How do I fix CVE-2022-26346?

No fix has been published for CVE-2022-26346 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-2022-26346 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-26346 exists.

Sources

Also known as GHSA-32hw-qxfv-ggpr.