Mitel Product Security Advisory 22-0001

MiCollab, MiVoice Business Express Access Control Vulnerability

Advisory ID: 22-0001

Publish Date: 2022-02-22

Last Updated: 2022-03-11

Revision: 2.0



A vulnerability has been identified in MiCollab and MiVoice Business Express that may allow a malicious actor to gain unauthorized access to sensitive information and services, cause performance degradations or a denial of service condition on the affected system. If exploited with a denial of service attack, the impacted system may cause significant outbound traffic impacting availability of other services.


Affected Products


Risk Assessment

The risk of this vulnerability is rated as critical for MiCollab deployments in Server-Gateway mode without firewall protection. The severity is rated high for MiCollab deployments on protected internal networks. Refer to the product Security Bulletin(s) for additional statements regarding risk.


Mitigation / Recommended Action



External References



Related CVEs / CWEs / Advisories



Revision History

Version Date Description
1.0 2022-02-22 Initial version
2.0 2022-03-11 Added CVE Identifier
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