FortiToken Mobile (Android) - Deny request approved from External push notification


An improper access control vulnerability [CWE-284 ] in FortiToken Mobile (Android) external push notification may allow a remote attacker having already obtained a user's password to access the protected system during the 2FA procedure, even though the deny button is clicked by the legitimate user.

Affected Products

FortiToken Mobile (Android) version 5.1.0 and below.


Please upgrade to version 5.2.0 or above.


Fortinet is pleased to thank Gerard Gerritsen from Gemeente Ede for reporting this vulnerability under responsible disclosure.