CVE-2016-8495: An improper certificate validation vulnerability in Fortinet FortiManager 5.0.6 through 5.2.7 and 5.4.0 thr...

Security readout for executives and security teams

FortiManager versions listed in the record may fail to properly validate certificates when using the FortiSandbox device probing feature. An attacker positioned between systems could impersonate a trusted entity. This is mainly a risk where affected FortiManager deployments communicate across networks an attacker could intercept. Exposure is limited to organizations running the affected FortiManager versions, especially where the FortiSandbox devices probing feature is enabled or configured. Risk depends on whether an attacker can intercept or alter traffic on the relevant network path. Address promptly if affected FortiManager systems are in production or cross less-trusted networks. The business risk is impersonation of trusted security infrastructure, but urgency cannot be rated precisely because the source bundle lacks CVSS, KEV, and active exploitation evidence. Mitigation focus: Inventory FortiManager versions and identify any listed vulnerable releases.; Check Fortinet advisory FG-IR-16-055 for official fixed versions or workarounds.; Limit exposure of FortiManager-to-FortiSandbox communication paths to trusted networks..

Prepared

Jun 13, 2026, 06:20 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.