Unrated severityCISA KEVNVD Advisory· Published Mar 9, 2022· Updated Oct 21, 2025
CVE-2022-26143
CVE-2022-26143
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.
Affected products
1- Mitel/MiCollabdescription
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- arstechnica.com/information-technology/2022/03/ddosers-use-new-method-capable-of-amplifying-traffic-by-a-factor-of-4-billion/mitrex_refsource_MISC
- blog.cloudflare.com/cve-2022-26143/mitrex_refsource_MISC
- news.ycombinator.com/itemmitrex_refsource_MISC
- team-cymru.com/blog/2022/03/08/record-breaking-ddos-potential-discovered-cve-2022-26143/mitrex_refsource_MISC
- www.akamai.com/blog/security/phone-home-ddos-attack-vectormitrex_refsource_MISC
- www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-22-0001mitrex_refsource_MISC
- www.shadowserver.org/news/cve-2022-26143-tp240phonehome-reflection-amplification-ddos-attack-vector/mitrex_refsource_MISC
News mentions
0No linked articles in our index yet.