CVE-2026-122118 PUBLISHED

Assigner: mitre
Reserved: 04.11.2026 Published: 04.11.2026 Updated: 04.11.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS Score: 7.4

Attack Vector	Adjacent Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Yealink
Product	AVHub
Versions	Default: unaffected affected from 0 to 153.135.0.76 (excl.)

Vendor	Yealink
Product	UVC86
Versions	Default: unaffected affected from 0 to 151.435.0.66 (excl.)

Vendor	Yealink
Product	SmartVision 80
Versions	Default: unaffected affected from 0 to 321.435.0.86 (excl.)

Vendor	Yealink
Product	UVC40 E2
Versions	Default: unaffected affected from 0 to 319.410.0.66 (excl.)

Vendor	Yealink
Product	MeetingBorard C
Versions	Default: unaffected affected from 0 to 328.321.0.40 (excl.)

Vendor	Yealink
Product	MeetingBar A10
Versions	Default: unaffected affected from 0 to 278.320.0.86 (excl.)

Vendor	Yealink
Product	MeetingBar A40
Versions	Default: unaffected affected from 0 to 289.320.0.81 (excl.)

Vendor	Yealink
Product	MeetingBar A50
Versions	Default: unaffected affected from 0 to 323.320.0.54 (excl.)

References

https://www.yealink.com/en/trust-center/security-bulletins/wifi-ap-weak-password-vulnerability

Problem Types

CWE-334 Small Space of Random Values CWE