Vulnerability · Published Nov 4, 2026 · Assigned by mitre
CVE-2026-122118
High 7.4
In plain English
A high-severity security flaw in AVHub from Yealink. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.2%top 89.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Yealink | AVHub | 0 – before 153.135.0.76 |
| Yealink | UVC86 | 0 – before 151.435.0.66 |
| Yealink | SmartVision 80 | 0 – before 321.435.0.86 |
| Yealink | UVC40 E2 | 0 – before 319.410.0.66 |
| Yealink | MeetingBorard C | 0 – before 328.321.0.40 |
| Yealink | MeetingBar A10 | 0 – before 278.320.0.86 |
| Yealink | MeetingBar A40 | 0 – before 289.320.0.81 |
| Yealink | MeetingBar A50 | 0 – before 323.320.0.54 |
Weakness: CWE-334 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N