CVE-2025-58692 is a critical SQL Injection vulnerability identified in Fortinet's FortiVoice telephony product, specifically affecting versions 7.2.0 through 7.2.2 and 7.0.0 through 7.0.7. The flaw stems from improper neutralization of special elements in SQL commands, enabling an authenticated attacker to inject malicious SQL code via crafted HTTP or HTTPS requests. This injection can lead to unauthorized execution of code or commands on the underlying system, potentially allowing attackers to manipulate or exfiltrate sensitive data, disrupt services, or gain persistent control. The vulnerability requires the attacker to have valid credentials (low privilege), but no user interaction is needed beyond sending crafted requests. The attack vector is network-based, with low complexity, and the scope of impact includes confidentiality, integrity, and availability of the FortiVoice system. FortiVoice is commonly deployed in enterprise telephony environments, making this vulnerability particularly concerning for organizations relying on it for critical communications. Although no public exploits have been reported yet, the public disclosure and high CVSS score indicate a significant risk. The vulnerability was reserved in early September 2025 and published in November 2025, with Fortinet expected to release patches to remediate the issue.

For European organizations, exploitation of CVE-2025-58692 could result in severe operational disruptions, data breaches, and unauthorized control over telephony infrastructure. Given FortiVoice's role in managing voice communications, attackers could intercept or manipulate calls, access sensitive voice data, or disrupt communication services, impacting business continuity and regulatory compliance, especially under GDPR. The compromise of telephony systems can also facilitate lateral movement within networks, increasing the risk of broader intrusions. Organizations in sectors such as finance, healthcare, government, and critical infrastructure, which rely heavily on secure communications, face heightened risks. The attack's requirement for authentication limits exposure but does not eliminate risk, as compromised or weak credentials could be leveraged. The absence of known exploits currently provides a window for proactive defense, but the high severity demands urgent attention to prevent potential exploitation.

Organizations should immediately inventory FortiVoice deployments and verify affected versions. While official patches are pending, implement strict network segmentation to isolate FortiVoice management interfaces, restricting access to trusted administrative hosts and networks only. Enforce strong authentication mechanisms, including multi-factor authentication, to reduce the risk of credential compromise. Monitor HTTP and HTTPS traffic to FortiVoice for anomalous or suspicious requests indicative of SQL injection attempts. Employ Web Application Firewalls (WAFs) with rules tailored to detect and block SQL injection patterns targeting FortiVoice endpoints. Regularly audit and rotate credentials used for FortiVoice access. Once Fortinet releases patches, apply them promptly following testing to ensure system stability. Additionally, review and enhance logging and alerting on FortiVoice systems to detect potential exploitation attempts early. Conduct security awareness training for administrators managing FortiVoice to recognize and respond to suspicious activities.