Applied Cybernetics Group
Threat intel → detection pipeline
Tuesday, July 14, 2026
Data as of 20:11 UTC

MiCollab, MiVoice Business Express Access Control Vulnerability

Added to KEV
2022-03-25
Federal due date
2022-04-15
Vendor
Mitel
Product
MiCollab, MiVoice Business Express
EPSS
99.7th percentile (score 0.876, as of 2026-07-13)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2022-26143

CISA short description

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.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.