MiCollab, MiVoice Business Express Access Control Vulnerability

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Summary

CVECVE-2022-26143
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-10 17:47:00 UTC
Updated2023-08-08 14:21:00 UTC
DescriptionThe 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.

Risk And Classification

EPSS: 0.891490000 probability, percentile 0.995370000 (date 2026-04-21)

CISA KEV: Listed on 2022-03-25; due 2022-04-15; ransomware use Unknown

Problem Types: CWE-306

CISA Known Exploited Vulnerability

VendorMitel
ProductMiCollab, MiVoice Business Express
NameMiCollab, MiVoice Business Express Access Control Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2022-26143

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mitel Micollab All All All All
Application Mitel Micollab 9.4 - All All
Application Mitel Micollab 9.4 sp1 All All
Application Mitel Mivoice Business Express All All All All

References

ReferenceSourceLinkTags
Akamai Blog | CVE-2022-26143: TP240PhoneHome Reflection/Amplification DDoS Attack Vector MISC www.akamai.com
Record breaking DDoS Potential Discovered: CVE-2022-26143 - Team Cymru MISC team-cymru.com
CVE-2022-26143: TP240PhoneHome Reflection/Amplification DDoS Attack Vector | The Shadowserver Foundation MISC www.shadowserver.org
CVE-2022-26143: TP240PhoneHome reflection/amplification DDoS attack vector MISC blog.cloudflare.com
New method that amplifies DDoSes by 4 billion-fold. What could go wrong? | Ars Technica MISC arstechnica.com
Mitel Product Security Advisory 22-0001 MISC www.mitel.com
TP240PhoneHome Reflection/Amplification DDoS Attack Vector | Hacker News MISC news.ycombinator.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev
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