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CVE-2026-1735— Yealink MeetingBar A30 Diagnostic command injection

Quick assessment

Affected
Yealink MeetingBar A30
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Yealink MeetingBar A30是中国亿联（Yealink）公司的一个视频会议终端。 Yealink MeetingBar A30 133.321.0.3版本存在命令注入漏洞，该漏洞源于Diagnostic Handler组件存在某些未知处理过程，可能导致命令注入。

CVSS 4.3 · Medium EPSS 1.36% · P72

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-1735

Vulnerability Information
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Vulnerability Title
Yealink MeetingBar A30 Diagnostic command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in Yealink MeetingBar A30 133.321.0.3. This issue affects some unknown processing of the component Diagnostic Handler. This manipulation causes command injection. It is feasible to perform the attack on the physical device. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Yealink MeetingBar A30 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yealink MeetingBar A30是中国亿联（Yealink）公司的一个视频会议终端。 Yealink MeetingBar A30 133.321.0.3版本存在命令注入漏洞，该漏洞源于Diagnostic Handler组件存在某些未知处理过程，可能导致命令注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Yealink MeetingBar A30 133.321.0.3 -

II. Public POCs for CVE-2026-1735

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III. Intelligence Information for CVE-2026-1735

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Vendor Advisories for CVE-2026-1735 (1)

IV. Related Vulnerabilities

Same vendor: Yealink
Same weakness: CWE-77

V. Comments for CVE-2026-1735

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