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Vulnerability Details : CVE-2022-26143

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.
Vulnerability category: Denial of service
Published 2022-03-10 17:47:33
Updated 2022-03-18 19:52:04
Source MITRE
View at NVD,   CVE.org
CVE-2022-26143 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
MiCollab, MiVoice Business Express Access Control Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA 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.
Added on 2022-03-25 Action due date 2022-04-15

Exploit prediction scoring system (EPSS) score for CVE-2022-26143

Probability of exploitation activity in the next 30 days: 3.96%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 91 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2022-26143

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
9.0
 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:C
10.0
8.5
 [email protected]
9.8
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 [email protected]

CWE ids for CVE-2022-26143

  • The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
    Assigned by: [email protected] (Primary)

References for CVE-2022-26143

Products affected by CVE-2022-26143

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