Is It On KEV?

Mitel MiCollab, MiVoice Business Express

YES - ON THE CISA KEV LIST
CVE-2022-26143

MiCollab, MiVoice Business Express Access Control Vulnerability

CISA catalog due date2022-04-15
overdue since 2022-04-15
EPSS exploit probability (next 30 days)87.3% · 100percentile
From CVE publication to KEV listing16 days (2022-03-09 → 2022-03-25)
Remediation window (KEV listing to due date)21 days
Days on the KEV list1692 days
Date added to KEV2022-03-25
Known ransomware campaign useUnknown
VendorMitel
ProductMiCollab, MiVoice Business Express
Weaknesses (CWE)CWE-306, CWE-406

Mitel: 7 entries (0.4% of all KEV entries are from this vendor); 0 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

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 (CISA)

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2022-26143

References

Other KEV entries for this vendor: Mitel

Mitel - Vendors with KEV entries

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