An integer overflow or wraparound vulnerability [CWE-190] in FortiOS SSLVPN memory allocator may allow an unauthenticated attacker to corruptÂ control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.
FortiOS version 7.0.0 and below.
FortiOS version 6.4.5 and below.
FortiOS version 6.2.9 and below.
FortiOS version 6.0.12 and below.
Upgrade to FortiOS 7.0.1.
Upgrade to FortiOS 6.4.6.
Upgrade to FortiOS 6.2.10.
Upgrade to FortiOS 6.0.13.
For new high-end F-Series Models (FG-1800F, FG-3800F, FG-4200F, FG-4400F) please upgrade to 6.2.9