Cisco disclosed three vulnerabilities in IoT Field Network Director (IoT FND) affecting all deployment configurations on releases 4.x and earlier, and 5.x prior to 5.0.0-117. A low-privileged authenticated attacker can exploit these flaws to execute OS commands on managed field routers, read restricted files, and disrupt router availability. No workaround exists; upgrade to IoT FND 5.0.0-117 is the only remediation.