CVE-2022-26143 — MiCollab, MiVoice Business Express Access Control Vulnerability

CVE-2022-26143 (Mitel MiCollab, MiVoice Business Express) is in the CISA Known Exploited Vulnerabilities catalog since 2022-03-25. A vulnerability has been identified in MiCollab and MiVoice Business Express that may allow a malicious… See the required fix, due date and advisories.

Exploitation status

CVE-2022-26143 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2022-03-25. 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.

Advisory facts

Vendor or project
Mitel
Affected product
MiCollab, MiVoice Business Express
Added to CISA KEV
2022-03-25
US federal remediation due date
2022-04-15
Ransomware association
Unknown
EPSS score
—
Weakness (CWE)
CWE-306, CWE-406

Remediation: the required action

Apply updates per vendor instructions.

Wording published by CISA for this catalog entry. It is the baseline action, not a decision about your environment: whether this exposure matters for you depends on where the affected component runs, what it is exposed to and who owns it.

From advisory to a decision you can defend

A catalog entry tells you a vulnerability is being exploited somewhere. It does not tell you whether it matters in your estate, who owns the fix, or what evidence an auditor will ask for later. That is the work VulnTrek does: it takes findings from the tools you already run, decides which exposure actually matters, routes it to an owner, keeps remediation human-approved and retains the lineage as evidence.

Sourced from public upstream advisories (CISA KEV, ENISA EUVD, vendor PSIRTs) mirrored daily. Informational only — not a remediation decision, not legal advice, and the absence of a record is not evidence of safety.