CVE-2022-26342 Memory corruption in LinkHub Mesh Wifi

High 8.8 Published 5 Aug 2022 Updated 15 Apr 2025

A buffer overflow in TCL LinkHub Mesh Wi-Fi allows remote attackers to execute arbitrary code or cause denial of service via malicious 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-2022-26342?

CVE-2022-26342 is a high-severity memory corruption 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 buffer overflow vulnerability exists in the confsrv ucloud_set_node_location functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A specially-crafted network packet can lead to a buffer overflow. An attacker can send a malicious packet to trigger this vulnerability.

Weakness: CWE-120

Which versions are affected by CVE-2022-26342?

It affects 1 product.

Products include Tcl Linkhub Mesh Wifi Ac1200.

How do I fix CVE-2022-26342?

No fix has been published for CVE-2022-26342 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-2022-26342 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-26342 exists.

Sources

Also known as GHSA-w653-2g89-6682.