CVE-2022-21201

CVE-2022-21201 is a high-severity vulnerability in Tcl Linkhub Mesh Wifi Ac1200 with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

• Severity: High (CVSS 3.x base score 8.8)
• EPSS exploit prediction: 1% (54th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-787
• Affected product: Tcl Linkhub Mesh Wifi Ac1200
• Published: 2022-08-05
• Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-21201?

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.

How severe is CVE-2022-21201?

CVE-2022-21201 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-21201 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21201?

CVE-2022-21201 affects Tcl Linkhub Mesh Wifi Ac1200. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21201?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-21201 published?

CVE-2022-21201 was published on 2022-08-05 and last updated on 2026-06-17.

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2022-1456

Affected products (1)

• cpe:2.3:o:tcl:linkhub_mesh_wifi_ac1200:ms1g_00_01.00_14:*:*:*:*:*:*:*

More vulnerabilities in Tcl Linkhub Mesh Wifi Ac1200

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• CVE-2022-26342 — Critical (CVSS 9.8): A buffer overflow vulnerability exists in the confsrv ucloud_set_node_location functionality of TCL LinkHub Mesh Wi-Fi…
• CVE-2022-26009 — Critical (CVSS 9.8): A stack-based buffer overflow vulnerability exists in the confsrv ucloud_set_node_location functionality of TCL LinkHub…
• CVE-2022-25996 — Critical (CVSS 9.8): A stack-based buffer overflow vulnerability exists in the confsrv addTimeGroup functionality of TCL LinkHub Mesh Wi-Fi…
• CVE-2022-24029 — Critical (CVSS 9.8): A buffer overflow vulnerability exists in the GetValue functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14. A…

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