CVE-2025-67822 in MiVoice MX-ONE
Summary
by MITRE • 01/16/2026
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.
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Analysis
by VulDB Data Team • 01/16/2026
The vulnerability identified as CVE-2025-67822 resides within the Provisioning Manager component of Mitel MiVoice MX-ONE systems, affecting versions ranging from 7.3.0.0.50 through 7.8 SP1 7.8.1.0.14. This authentication bypass flaw represents a critical security weakness that directly compromises the system's ability to verify user identities and authorize access to sensitive administrative functions. The affected component serves as a crucial interface for system configuration and user management, making it a prime target for malicious actors seeking unauthorized system access. The vulnerability's presence in multiple versions indicates a persistent design flaw that has not been adequately addressed across the product lifecycle, creating a broad attack surface for potential exploitation.
The technical root cause of this vulnerability stems from improper authentication mechanisms implemented within the Provisioning Manager module. This weakness allows an unauthenticated attacker to bypass the standard authentication process entirely, enabling them to access administrative and user accounts without providing valid credentials. The flaw likely manifests through insufficient input validation, weak session management, or predictable authentication tokens that can be exploited through brute force or pattern recognition techniques. According to CWE classification, this vulnerability aligns with CWE-287 which addresses improper authentication issues, and potentially CWE-305 which covers authentication bypass through multiple attempts or flawed challenge-response mechanisms. The attack vector suggests that the system fails to properly validate authentication requests, allowing malicious actors to manipulate the authentication flow through crafted requests or by exploiting implementation gaps in the security controls.
The operational impact of this vulnerability extends beyond simple unauthorized access, creating significant risks for organizations relying on Mitel MiVoice MX-ONE systems for their communication infrastructure. Successful exploitation could enable attackers to gain full administrative privileges, allowing them to modify user accounts, access confidential communications, alter system configurations, and potentially establish persistent backdoors within the network. The implications are particularly severe given that this vulnerability affects the provisioning manager which typically handles user account creation, modification, and management functions. From an attack perspective, this flaw aligns with ATT&CK technique T1078 which covers valid accounts usage, and T1566 which covers credential harvesting through various attack vectors. Organizations may face regulatory compliance violations, data breaches, and operational disruption as a result of unauthorized access to their communication systems.
Mitigation strategies for CVE-2025-67822 must address both immediate protection and long-term system hardening. Organizations should prioritize applying available patches from Mitel to address the authentication bypass vulnerability, while simultaneously implementing network segmentation to limit access to the affected Provisioning Manager component. Access controls should be strengthened through multi-factor authentication implementation, even for internal network segments, and regular monitoring of authentication attempts should be enabled to detect potential exploitation attempts. Security teams should conduct comprehensive vulnerability assessments to identify any additional weaknesses in the system's authentication framework and consider implementing intrusion detection systems specifically designed to monitor for authentication bypass attempts. The remediation process should include thorough testing of patches in controlled environments before deployment to production systems, ensuring that the fixes do not introduce new operational issues while effectively addressing the authentication bypass vulnerability.