CVE-2026-1735

EUVD-2026-5110 · Published Feb 2, 2026

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.

Weaknesses

CWE-74CWE-77

CVSS scores

v4.00.9CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
v3.14.3CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
v2.04.6AV:L/AC:L/Au:N/C:P/I:P/A:P

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Execution Privilege Escalation Stealth Defense Impairment

T1068Exploitation for Privilege Escalation T1027Obfuscated Files or Information T1574.006Dynamic Linker Hijacking T1574.007Path Interception by PATH Environment Variable T1690Prevent Command History Logging

References

Potentially impacted assets

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