An improper certificate validation vulnerability in Fortinet FortiManager 5.0.6 through 5.2.7 and 5.4.0 through 5.4.1 allows remote attacker to spoof a trusted entity by using a man-in-the-middle (MITM) attack via the Fortisandbox devices probing feature.
Severity
CVSS 3.0
7.4 high
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)