Mivoice Mx One
CVE-2025-67822
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 9.4 (Critical). No auth. EPSS 0.08%. Enterprise VoIP system compromise enables call interception, configuration changes, and service disruption. |
| Exploit ScenarioDerived | An attacker bypasses Provisioning Manager auth to access the admin account, reconfiguring the VoIP system to redirect calls through an attacker-controlled proxy for interception. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Mitel MiVoice MX-ONE 7.3-7.8 SP1 has authentication bypass in the Provisioning Manager. Unauthenticated attackers can access user or admin accounts in the VoIP management system.
Earlier versions of this analysis (1)
Mitel MiVoice authentication bypass allows unauthenticated access to VoIP admin accounts.
RemediationAI
Apply Mitel patches. Restrict Provisioning Manager access.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The Provisioning Manager has improper authentication (CWE-287) allowing bypass of login controls. MiVoice MX-ONE is an enterprise VoIP system managing thousands of phone endpoints.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
A vulnerability in the Provisioning Manager component of Mitel MiVoice MX-ONE 7.3 (7.3.0.0.50) through 7.8 SP1 (7.8.1.0.14) could allow an unauthenticated attacker to conduct an authentication bypass attack due to improper authentication mechanisms. A successful exploit could allow an attacker to gain unauthorized access to user or admin accounts in the system.
Executive ViewAI
CVE-2025-67822 presents critical security risk, a improper authentication vulnerability rated CVSS 9.4. Attackers could bypass security controls to gain unauthorized access to protected resources and sensitive data. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls; (2) Enable MFA where possible; (3) Monitor authentication logs for anomalous access.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
GitHub PoC
Exploit-DB