CVE-2026-122118

HIGH
MEDIUM Priority: 0.02 BB Relevance: 60/100
Published: 2026-11-04 Modified: 2026-11-12 First seen: 2026-11-04 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction Conf. Impact Scope Change

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
S: Changed
C: High
I: None
A: None

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.

Weakness Classification (1)

Affected Software (16)

VendorProductVersion
Yealink AVHub 0 < 153.135.0.76
Yealink AVHub 0 < 153.135.0.76
Yealink MeetingBar A10 0 < 278.320.0.86
Yealink MeetingBar A10 0 < 278.320.0.86
Yealink MeetingBar A40 0 < 289.320.0.81
Yealink MeetingBar A40 0 < 289.320.0.81
Yealink MeetingBar A50 0 < 323.320.0.54
Yealink MeetingBar A50 0 < 323.320.0.54
Yealink MeetingBorard C 0 < 328.321.0.40
Yealink MeetingBorard C 0 < 328.321.0.40
Yealink SmartVision 80 0 < 321.435.0.86
Yealink SmartVision 80 0 < 321.435.0.86
Yealink UVC40 E2 0 < 319.410.0.66
Yealink UVC40 E2 0 < 319.410.0.66
Yealink UVC86 0 < 151.435.0.66
Yealink UVC86 0 < 151.435.0.66

Bug Bounty Relevance

60 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.4 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS — Exploitation Probability

0.21%
Raw Score 0.002060
Percentile 10.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00206
2026-11-12
0.00206
2026-11-10
0.00206
2026-11-09
0.00206
2026-11-08
0.00206
2026-11-07
0.00206
2026-11-06
0.00206
2026-11-05
0.00206

Intelligence Sources

mitre ref →
nvd ref →