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.

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Yealink AVHub unaffected
Version Status Constraints
0 affected < 153.135.0.76
Yealink UVC86 unaffected
Version Status Constraints
0 affected < 151.435.0.66
Yealink SmartVision 80 unaffected
Version Status Constraints
0 affected < 321.435.0.86
Yealink UVC40 E2 unaffected
Version Status Constraints
0 affected < 319.410.0.66
Yealink MeetingBorard C unaffected
Version Status Constraints
0 affected < 328.321.0.40
Yealink MeetingBar A10 unaffected
Version Status Constraints
0 affected < 278.320.0.86
Yealink MeetingBar A40 unaffected
Version Status Constraints
0 affected < 289.320.0.81
Yealink MeetingBar A50 unaffected
Version Status Constraints
0 affected < 323.320.0.54

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.yealink.com/en/trust-center/security-bulletins/wifi-ap-weak-password-vulnerability cve-icon cve-icon
History

Wed, 04 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 04 Nov 2026 20:00:00 +0000

Type Values Removed Values Added
Title Wi‑Fi Access Point Weak Password Vulnerability in Yealink Devices

Wed, 04 Nov 2026 18:15:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-334
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-04T20:00:57.515Z

Reserved: 2026-11-04T17:55:47.718Z

Link: CVE-2026-122118

cve-icon Vulnrichment

Updated: 2026-11-04T19:59:13.147Z

cve-icon NVD

Status : Received

Published: 2026-11-04T18:17:43.667

Modified: 2026-11-04T20:19:12.053

Link: CVE-2026-122118

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T19:45:14Z

Weaknesses