Active Exploitation of Fortinet FortiWeb OS Command Injection Vulnerability (CVE-2025-58034)

Fortinet has disclosed a critical OS command code injection vulnerability, identified as CVE-2025-58034, affecting FortiWeb products. Security advisories from both Fortinet and the Canadian Centre for Cyber Security confirm that an exploit for this vulnerability is active in the wild. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added CVE-2025-58034 to its Known Exploited Vulnerabilities (KEV) Catalog, underscoring the significant risk posed to organizations using affected FortiWeb devices.

CISA recommends a reduced remediation timeframe of one week due to ongoing exploitation and urges all organizations, not just federal agencies, to prioritize patching this vulnerability. The vulnerability is a frequent attack vector for malicious actors, and immediate action is advised to mitigate the risk, including applying vendor updates and following best practices for securing internet-exposed management interfaces. Organizations are encouraged to review the official advisories and implement the necessary updates to protect their networks from active threats.