CVE-2025-52914: 
Mitel MiCollab vulnerability analysis and mitigation

CVE-2025-52914 is a SQL Injection vulnerability in the Suite Applications Services component of Mitel MiCollab, classified as CWE-89. It affects MiCollab versions 10.0.0.26 through 10.0.1.101 (10.0 SP1 FP1) and versions prior to 9.8.3.103. An authenticated attacker with low privileges can exploit insufficient input validation to execute arbitrary SQL database commands. The vulnerability was published on August 8, 2025, with a CVSS v3.1 base score of 8.8 (High) (Mitel Advisory, Red Hat CVE).

The root cause is improper neutralization of special elements used in SQL commands (CWE-89) within the Suite Applications Services component of MiCollab, where user-supplied input is not adequately sanitized before being incorporated into SQL queries. The attack vector is network-based, requires only low-level authentication, low attack complexity, and no user interaction, making it straightforward to exploit once an attacker has any valid account. A public proof-of-concept exploit has been published on GitHub, demonstrating the exploitability of this flaw (PoC GitHub, Mitel Advisory).

Successful exploitation allows an authenticated attacker to execute arbitrary SQL commands against the MiCollab database, resulting in high impact to confidentiality, integrity, and availability. This could lead to unauthorized access to sensitive communications data, modification or deletion of database records, and potential full compromise of database integrity. Depending on database configuration, attackers may also be able to escalate privileges or pivot to other systems within the enterprise environment (Feedly Intel, Security Online).

A proof-of-concept exploit is publicly available on GitHub (published by researcher rxerium), increasing the likelihood of active exploitation (PoC GitHub). As of the time of reporting, there is no confirmed evidence of in-the-wild exploitation or threat actor attribution. The EPSS score is approximately 0.025% (0.000250), indicating a currently low but non-negligible probability of exploitation. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog at this time (Feedly Intel).

1. Reconnaissance: Identify Mitel MiCollab deployments running versions 10.0.0.26–10.0.1.101 or below 9.8.3.103 using network scanning tools or Shodan/Censys queries targeting MiCollab web interfaces.
2. Authentication: Obtain any valid low-privileged user account on the MiCollab system (e.g., through credential stuffing, phishing, or use of default credentials).
3. Identify vulnerable endpoint: Locate the Suite Applications Services component endpoint that processes user-controlled input passed to SQL queries.
4. Craft SQL injection payload: Inject malicious SQL syntax into the vulnerable input parameter (e.g., appending ' OR 1=1-- or more advanced payloads for data extraction or command execution) within an authenticated HTTP request.
5. Execute arbitrary SQL commands: Submit the crafted request to the server; the insufficient input validation allows the injected SQL to execute against the backend database, enabling data exfiltration, modification, or deletion.
6. Escalate or pivot: Depending on database permissions, attempt to read sensitive tables (user credentials, call records), modify data, or use database features (e.g., xp_cmdshell if applicable) for further system access (PoC GitHub, Mitel Advisory).

• Network: Unusual or malformed HTTP requests to MiCollab Suite Applications Services endpoints containing SQL metacharacters (', --, OR 1=1, UNION SELECT, etc.) in parameter values; unexpected outbound database connections from the MiCollab server.
• Logs: MiCollab application logs showing SQL errors or unexpected query structures; authentication logs indicating low-privileged accounts making repeated or unusual API calls to Suite Applications Services endpoints.
• Database: Unexpected queries in database audit logs involving UNION, SELECT, DROP, INSERT, or UPDATE statements not consistent with normal application behavior; new or modified database records not attributable to legitimate user activity.
• File System: Unexpected files written to the MiCollab server filesystem if the attacker leveraged database features for file write operations.

Mitel has released patches addressing CVE-2025-52914 via security advisory MISA-2025-0008. Affected users should upgrade MiCollab to version 10.1.0.10 or later, or to version 9.8.3.103 or later for the 9.x branch. As interim measures, organizations should implement network segmentation to restrict access to MiCollab systems, monitor database activity for anomalous SQL commands, enforce least-privilege principles for all MiCollab user accounts, and apply input validation controls where possible (Mitel Advisory, Mitel Security).

Security news outlets including Security Online and UnderCode News covered the vulnerability alongside other critical Mitel flaws disclosed around the same period, noting the public availability of a PoC exploit and the risk to enterprise unified communications deployments (Security Online, UnderCode News). Researcher rxerium published the PoC on GitHub and announced it via Bluesky, drawing community attention to the ease of exploitation given the low privilege requirement (PoC GitHub). UC Today highlighted the broader context of multiple Mitel patches released simultaneously, urging IT leaders to prioritize remediation (UC Today).