CVE-2025-64156 is a SQL injection vulnerability identified in Fortinet FortiVoice versions 6.0 (all versions), 6.4 (all versions), 7.0.0 through 7.0.7, and 7.2.0 through 7.2.2. The vulnerability stems from improper neutralization of special elements used in SQL commands, allowing an attacker with authenticated privileged access to inject malicious SQL statements. This injection can lead to unauthorized execution of code or commands on the FortiVoice system. The flaw affects the backend database interactions, enabling attackers to manipulate SQL queries to escalate privileges, extract sensitive data, or disrupt system operations. Exploitation requires the attacker to have high-level privileges (authenticated privileged user), but no additional user interaction is necessary. The vulnerability impacts confidentiality, integrity, and availability, as attackers can potentially execute arbitrary commands, access sensitive voice communication data, or disrupt telephony services. The CVSS v3.1 base score is 6.8, reflecting medium severity with network attack vector, low attack complexity, and high privileges required. No public exploits are known at this time, but the vulnerability is publicly disclosed and should be addressed promptly. Fortinet has not yet provided official patches or mitigation instructions in the provided data, emphasizing the need for organizations to monitor vendor advisories closely. FortiVoice is widely used in enterprise telephony solutions, making this vulnerability significant for organizations relying on Fortinet's voice communication products.

The potential impact of CVE-2025-64156 is substantial for organizations utilizing Fortinet FortiVoice systems. Successful exploitation can lead to unauthorized code execution, allowing attackers to compromise the confidentiality of sensitive voice communication data, alter or delete critical system information, and disrupt telephony services, impacting business continuity. Given FortiVoice's role in enterprise voice communications, such disruptions could affect customer service, internal communications, and emergency response capabilities. The requirement for authenticated privileged access limits the attack surface but also means insider threats or compromised administrative accounts could be leveraged. The vulnerability could facilitate lateral movement within networks, enabling attackers to pivot to other critical systems. Organizations in sectors with high dependency on secure and reliable voice communications—such as telecommunications, finance, healthcare, and government—face elevated risks. The absence of known exploits reduces immediate risk but does not preclude future weaponization, underscoring the importance of proactive mitigation.

To mitigate CVE-2025-64156, organizations should implement the following specific measures: 1) Immediately review and restrict administrative access to FortiVoice systems, enforcing the principle of least privilege and strong authentication mechanisms such as multi-factor authentication (MFA) for all privileged accounts. 2) Monitor Fortinet’s official channels for patches or security updates addressing this vulnerability and apply them promptly upon release. 3) Conduct thorough audits of FortiVoice logs and configurations to detect any anomalous or unauthorized activities indicative of exploitation attempts. 4) Employ network segmentation to isolate FortiVoice systems from general user networks, limiting exposure to potential attackers. 5) Implement Web Application Firewalls (WAFs) or intrusion prevention systems (IPS) with custom rules to detect and block SQL injection patterns targeting FortiVoice interfaces. 6) Regularly update and patch all related infrastructure components to reduce the risk of chained exploits. 7) Educate administrators on secure handling of privileged credentials and the risks associated with SQL injection vulnerabilities. 8) Consider deploying endpoint detection and response (EDR) solutions on management workstations to identify suspicious activities related to FortiVoice administration. These targeted actions go beyond generic advice and focus on reducing the attack surface and improving detection capabilities specific to this vulnerability.