CVE-2022-26143
MiCollab, MiVoice Business Express Access Control Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run MiCollab, MiVoice Business Express, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Apr 15, 2022.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
Description
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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| MiCollab | Mitel | < 9.4; 9.4 | 9.4 | NVD |
| MiCollab, MiVoice Business Express | Mitel | — | — | KEV |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2022-26143 scored CVSS 9.8: Mitel MiCollab, MiVoice Business Express, MiCollab, MiVoice Business Express Access Control Vulnerability
CISA lists this as exploited in the wild. Unpatched MiCollab, MiVoice Business Express systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
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