A use of hard-coded cryptographic key vulnerability [CWE-321] in FortiDDoS API may allow an attacker who managed to retrieve the key from one device to sign JWT tokens for any device.
FortiDDoS version 5.5.0 through 5.5.1
FortiDDoS version 5.4.0 through 5.4.2
FortiDDoS version 5.3.0 through 5.3.1
FortiDDoS version 5.2.0
FortiDDoS version 5.1.0
Please upgrade to upcoming FortoDDoS 5.6.0 or above.