What is CVE-2026-122118?

CVE-2026-122118 is a high-severity vulnerability in Yealink Avhub, classified under CWE-334. CVSS score: 7.4/10. Published 2026-11-04.

How severe is CVE-2026-122118?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Yealink Avhub

CVE-2026-122118

In certain Yealink products before 2026-04-15, when the Wi-Fi AP function is enabled, a default 8-digit numeric PSK with insufficient strength is used. Attackers can exploit this weakness via brute-force attacks to gain unauthorized network access and intercept Wi-Fi traffic.

Published 2026-11-04 · last modified 2026-11-04.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-334

References

www.yealink.com/en/trust-center/security-bulletins/wifi-ap-weak-password-vulner…

Frequently asked questions

What is CVE-2026-122118?: CVE-2026-122118 is a high-severity vulnerability in Yealink Avhub, classified under CWE-334. CVSS score: 7.4/10. Published 2026-11-04.
How severe is CVE-2026-122118?: High severity. CVSS v3 base score is 7.4 out of 10.