CVE-2025-25249: Remote Code Execution Vulnerability in FortiOS and FortiSwitchManager
On January 13, 2026, Fortinet released an advisory describing a high-severity remote code execution vulnerability affecting its FortiOS and FortiSwitchManager products. According to Fortinet, the vulnerability stems from a flaw in the CAPWAP Wireless Aggregate Controller Daemon and could allow an unauthenticated, remote threat actor to execute arbitrary code or commands. The vulnerability was discovered internally by Fortinet’s Product Security Team.