CVE-2022-26143 (GCVE-0-2022-26143)

Vulnerability from cvelistv5 – Published: 2022-03-09 15:32 – Updated: 2025-10-21 23:15
VLAI CISA KEVIntel
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • n/a
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 512d65d3-d470-4945-aaf3-ae286e760d71

Vulnerability ID: CVE-2022-26143

Status: Confirmed

Status Updated: 2022-03-25 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-25
Asserted: 2022-03-25
Scope
Notes: KEV entry: MiCollab, MiVoice Business Express Access Control Vulnerability | Affected: Mitel / MiCollab, MiVoice Business Express | Description: A vulnerability has been identified in MiCollab and MiVoice Business Express that may allow a malicious actor to gain unauthorized access to sensitive information and services, cause performance degradations or a denial of service condition on the affected system. | Required action: Apply updates per vendor instructions. | Due date: 2022-04-15 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2022-26143
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-306 CWE-406
Feed CISA Known Exploited Vulnerabilities Catalog
Product MiCollab, MiVoice Business Express
Due Date 2022-04-15
Date Added 2022-03-25
Vendorproject Mitel
Vulnerabilityname MiCollab, MiVoice Business Express Access Control Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:27 UTC | Updated: 2026-02-06 07:17 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 41fc664d-c2d7-454d-950c-d9df5d844274

Vulnerability ID: CVE-2022-26143

Status: Confirmed

Status Updated: 2022-03-25 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-25
Asserted: 2022-03-25
Scope
Notes: KEVIntel entry: 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... | Affected: Mitel / MiCollab, MiVoice Business Express | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title 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...
Vendor Mitel
Product MiCollab, MiVoice Business Express
Added Date 2022-03-25T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-06-23 14:05 UTC
Show details on NVD website
To clipboard 

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}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.