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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-26143 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://arstechnica.com/information-technology/2022/03/ddosers-use-new-method-capable-of-amplifying-traffic-by-a-factor-of-4-billion/ CVE, MITRE Exploit  Press/Media Coverage  Third Party Advisory 
https://blog.cloudflare.com/cve-2022-26143/ CVE, MITRE Mitigation  Third Party Advisory 
https://news.ycombinator.com/item?id=30614073 CVE, MITRE Issue Tracking  Third Party Advisory 
https://team-cymru.com/blog/2022/03/08/record-breaking-ddos-potential-discovered-cve-2022-26143/ CVE, MITRE Broken Link  Mitigation  Third Party Advisory 
https://www.akamai.com/blog/security/phone-home-ddos-attack-vector CVE, MITRE Mitigation  Third Party Advisory 
https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-22-0001 CVE, MITRE Vendor Advisory 
https://www.shadowserver.org/news/cve-2022-26143-tp240phonehome-reflection-amplification-ddos-attack-vector/ CVE, MITRE Mitigation  Third Party Advisory 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
MiCollab, MiVoice Business Express Access Control Vulnerability 03/25/2022 04/15/2022 Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-306 Missing Authentication for Critical Function cwe source acceptance level NIST   CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-26143
NVD Published Date:
03/10/2022
NVD Last Modified:
03/14/2025
Source:
MITRE