CVE-2022-26143
CriticalActively exploited (CISA KEV)
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Mitel MiCollab, MiVoice Business Express
PublishedMar 10, 2022
First seenMar 10, 2022
Added to KEVMar 25, 2022
Weakness typeCWE-306Missing authentication for critical function
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Apr 15, 2022Update
- mitel micollab9.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mitel micollab | v < 9.4, 9.4 | 9.4 |
| mitel mivoice_business_express | v ≤ 8.1 | — |
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