Yealink MeetingBar A50 prior 2026-04-15 improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k1.03+

Summaryinfo

A vulnerability has been found in Yealink AVHub, UVC86, SmartVision 80, UVC40 E2, MeetingBorard C, MeetingBar A10, MeetingBar A40 and MeetingBar A50 and classified as critical. This affects an unknown part. The manipulation leads to improper authorization. This vulnerability is uniquely identified as CVE-2026-122118. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Yealink AVHub, UVC86, SmartVision 80, UVC40 E2, MeetingBorard C, MeetingBar A10, MeetingBar A40 and MeetingBar A50. This issue affects an unknown part. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at yealink.com. The identification of this vulnerability is CVE-2026-122118 since 11/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 2026-04-15 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.4
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: AVHub/UVC86/SmartVision 80/UVC40 E2/MeetingBorard C/MeetingBar A10/MeetingBar A40/MeetingBar A50 2026-04-15

Timelineinfo

11/04/2026 Advisory disclosed
11/04/2026 +0 days CVE reserved
11/04/2026 +0 days VulDB entry created
11/04/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: yealink.com
Status: Confirmed

CNA: MITRE
CVE: CVE-2026-122118 (🔒)

GCVE (CVE): GCVE-0-2026-122118
GCVE (VulDB): GCVE-100-431147

Entryinfo

Created: 11/04/2026 19:22
Changes: 11/04/2026 19:22 (26), 11/04/2026 19:23 (35)
Complete: 🔍
Cache ID: 216::103

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