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

criticalknown exploitedpublic exploitCVE-2022-26143
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: MiCollabproduct: MiCollab and MiVoice Business ExpressAuthentication bypassDenial of service
What
A vulnerability may allow unauthorized access to sensitive information and cause performance degradation or denial of service.
Who is affected
Users of MiCollab and MiVoice Business Express.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest versions of MiCollab and MiVoice Business Express.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-25
Exploitation
Observed in the wild (CISA KEV)

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

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-26143coverage & exploitation statusNVD · CVE.org

Recent advisories for MiCollab

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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