CVE-2025-23092 is a vulnerability identified in Mitel OpenScape Accounting Management through V5 R1.1.0. This vulnerability arises from insufficient sanitization of user input, which allows an authenticated attacker with administrative privileges to perform a path traversal attack. Path traversal vulnerabilities enable attackers to manipulate file paths to access directories and files outside the intended scope. In this case, the attacker can exploit the vulnerability to upload arbitrary files to the system and execute unauthorized commands. The attack requires administrative authentication, indicating that the attacker must already have elevated access within the system. However, once exploited, the attacker can compromise the confidentiality, integrity, and availability of the affected system by executing arbitrary code, potentially leading to full system compromise. The lack of a CVSS score and absence of known exploits in the wild suggest this vulnerability is newly disclosed and may not yet be widely exploited. The vulnerability affects the specific version V5 R1.1.0 of the Mitel OpenScape Accounting Management product, which is used for accounting and management functions within Mitel’s OpenScape unified communications ecosystem. The vulnerability’s exploitation could lead to significant operational disruption and data breaches within organizations relying on this product for their telephony and communications infrastructure management.

For European organizations, the impact of this vulnerability could be substantial, especially for enterprises and service providers that use Mitel OpenScape products for unified communications and accounting management. Successful exploitation could lead to unauthorized command execution, enabling attackers to manipulate accounting data, disrupt communication services, or pivot to other parts of the network. This could result in data breaches involving sensitive financial and operational information, loss of service availability, and potential regulatory non-compliance under GDPR due to compromised data integrity and confidentiality. Organizations in sectors such as telecommunications, finance, healthcare, and government, which often rely on Mitel solutions, may face increased risk. Additionally, the requirement for administrative privileges means insider threats or compromised administrative accounts could be leveraged to exploit this vulnerability, increasing the risk profile. The absence of known exploits in the wild currently limits immediate widespread impact, but the vulnerability’s nature makes it a high-value target for attackers seeking to gain persistent access or disrupt critical communications infrastructure.

To mitigate this vulnerability, European organizations should take the following specific actions: 1) Immediately review and restrict administrative access to Mitel OpenScape Accounting Management systems, ensuring that only necessary personnel have elevated privileges and that strong authentication mechanisms (e.g., multi-factor authentication) are enforced. 2) Conduct a thorough audit of existing administrative accounts and sessions to detect any unauthorized or suspicious activity. 3) Implement strict input validation and sanitization controls at the application layer if possible, or apply any available vendor patches or workarounds as soon as they are released by Mitel. 4) Monitor system logs and network traffic for unusual file upload activities or command execution attempts related to the accounting management system. 5) Segment the network to isolate the OpenScape management systems from other critical infrastructure to limit lateral movement in case of compromise. 6) Develop and test incident response plans specifically addressing potential exploitation of this vulnerability, including rapid revocation of compromised credentials and system restoration procedures. 7) Engage with Mitel support channels to obtain updates on patches or mitigation guidance and apply them promptly once available.