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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.

PUBLISHED Reserved 2026-02-01 | Published 2026-02-02 | Updated 2026-02-23 | Assigner VulDB




LOW: 2.4CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 4.3CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 4.3CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.6AV:L/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Command Injection

Injection

Product status

133.321.0.3
affected

Timeline

2026-02-01:Advisory disclosed
2026-02-01:VulDB entry created
2026-02-03:VulDB entry last update

Credits

cccll (VulDB User) reporter

References

vuldb.com/?id.343634 (VDB-343634 | Yealink MeetingBar A30 Diagnostic command injection) vdb-entry

vuldb.com/?ctiid.343634 (VDB-343634 | CTI Indicators (IOB, IOC, TTP)) signature permissions-required

vuldb.com/?submit.736622 (Submit #736622 | Yealink MeetingBar A30 133.321.0.3 Command Injection) third-party-advisory

drive.google.com/...meXsFfkcvAeOtF1TkvGjozy/view?usp=sharing exploit

cve.org (CVE-2026-1735)

nvd.nist.gov (CVE-2026-1735)

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