A vulnerability has been found in FastNetMon Community Edition up to 1.2.9 and classified as critical . This vulnerability affects the function _log of the file src/mikrotik_plugin/fastnetmon_mikrotik.php of the component Command-Line Argument Handler . The manipulation of the argument msg leads to os command injection. This vulnerability is listed as CVE-2026-48695 . The attack must be carried out from within the local network. There is no available exploit.