Auth bypass in Mitel Micollab
CVE-2022-26143
The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 allows remote attackers to obtain sensitive information and cause a denial of service (performance degradation and excessive…
Vulnerability class: Broken Authentication
EPSS: 0.876 (99.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mitel Micollab — versions 9.4
- Mitel Mivoice_business_express
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Mitigation)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Mitigation)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Mitigation)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Mitigation, Broken Link)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Press/Media Coverage)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2022-26143?
- CVE-2022-26143 is a critical-severity vulnerability in Mitel Micollab, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2022-03-10.
- How severe is CVE-2022-26143?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-26143 known to be exploited?
- Yes. CVE-2022-26143 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.