Live › vulnerability › CVE-2022-26143
Go to dashboardMitel MiCollab and MiVoice Business Express have an access control flaw that lets an attacker reach sensitive information and services without authorization, and can also degrade performance or cause denial of service. CISA lists it in the Known Exploited Vulnerabilities catalog, so attacks are happening in the wild.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Mitel MiCollab, MiVoice Business Express | vendor | – | – |
Unknown from the sources.
Apply the updates per the vendor instructions (CISA required action); the specific fixed version is not stated in the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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 outbound traffic). This was exploited in the wild in February and March 2022 for the TP240PhoneHome DDoS attack.
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CISA KEV catalog, Creative Commons 0 · EPSS scores by FIRST, used with attribution · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.