Is CVE-2022-21201 actively exploited?

No active exploitation of CVE-2022-21201 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-21201 be exploited remotely?

Partially. CVE-2022-21201 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2022-21201?

CVE-2022-21201 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2022-21201

CWE-121Published: August 5, 2022· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

A stack-based buffer overflow vulnerability exists in the confers ucloud_add_node_new functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A specially-crafted network packet can lead to stack-based buffer overflow. An attacker can send a malicious packet to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2022-21201 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.