Improper Certificate Validation in MiCollab and MiVoice Business Solution Virtual Instance (MiVB SVI) - #VU134866

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Main Vulnerability Database Vulnerabilities #VU134866

Improper Certificate Validation in MiCollab and MiVoice Business Solution Virtual Instance (MiVB SVI) - #VU134866

Published: June 18, 2026


Vulnerability identifier: #VU134866
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Mitel
Affected software:
MiCollab
MiVoice Business Solution Virtual Instance (MiVB SVI)

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary commands.

The vulnerability exists due to improper certificate validation in the MiCollab Client Service component when handling requests. A remote attacker can send a specially crafted request to execute arbitrary commands.



Remediation

Install security update from vendor's website.

Sources