FortiOS
CVE-2025-25252: Insufficient Session Expiration in FortiOS
An Insufficient Session Expiration vulnerability [CWE-613] in FortiOS SSL VPN 7.6.0 through 7.6.2, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.0 through 7.0.16, 6.4 all versions may allow a remote attacker (e.g.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiOS 7.6.0 to 7.6.2 | 7.6.3 or later |
| FortiOS 7.4.0 to 7.4.6 | 7.4.7 or later |
| FortiOS 7.2.0 to 7.2.10 | Upgrade past 7.2.10; see the advisory |
| FortiOS 7.0.0 to 7.0.16 | Upgrade past 7.0.16; see the advisory |
| FortiOS 6.4.0 to 6.4.16 | Upgrade past 6.4.16; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
An Insufficient Session Expiration vulnerability [CWE-613] in FortiOS SSL VPN 7.6.0 through 7.6.2, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.0 through 7.0.16, 6.4 all versions may allow a remote attacker (e.g. a former admin whose account was removed and whose session was terminated) in possession of the SAML record of a user session to access or re-open that session via re-use of SAML record.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.