CVE-2022-26143

KEV
Published: Mar 10, 2022 Last Modified: Nov 03, 2025
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 9,0
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: complete

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,8920
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

306

Missing Authentication for Critical Function

Draft
Common Consequences
Security Scopes Affected:
Access Control Other
Potential Impacts:
Gain Privileges Or Assume Identity Varies By Context
Applicable Platforms
Technologies: Cloud Computing, ICS/OT
View CWE Details
Application

Micollab by Mitel

Version Range Affected
To 9.4 (exclusive)
cpe:2.3:a:mitel:micollab:*:*:*:*:*:-:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Micollab by Mitel

cpe:2.3:a:mitel:micollab:9.4:sp1:*:*:*:-:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Micollab by Mitel

cpe:2.3:a:mitel:micollab:9.4:-:*:*:*:-:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Mivoice Business Express by Mitel

Version Range Affected
To 8.1 (inclusive)
cpe:2.3:a:mitel:mivoice_business_express:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022…
https://arstechnica.com/information-technology/2022/03/ddosers-use-new-method-c…
https://blog.cloudflare.com/cve-2022-26143/
https://news.ycombinator.com/item?id=30614073
https://team-cymru.com/blog/2022/03/08/record-breaking-ddos-potential-discovere…
https://www.akamai.com/blog/security/phone-home-ddos-attack-vector
https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-…
https://www.shadowserver.org/news/cve-2022-26143-tp240phonehome-reflection-ampl…
https://arstechnica.com/information-technology/2022/03/ddosers-use-new-method-c…
https://blog.cloudflare.com/cve-2022-26143/
https://news.ycombinator.com/item?id=30614073
https://team-cymru.com/blog/2022/03/08/record-breaking-ddos-potential-discovere…
https://www.akamai.com/blog/security/phone-home-ddos-attack-vector
https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-…
https://www.shadowserver.org/news/cve-2022-26143-tp240phonehome-reflection-ampl…