CVE-2025-62631
MEDIUM EXPLOITEDFortiOS 6.4.0-6.4.15, 7.0.0-7.0.18, 7.2.0-7.2.12, 7.4.0 - Insufficient Session Expiration via SSLVPN
Title source: llmExploitation Summary
CVE-2025-62631 has been observed exploited in the wild (reported by VulnCheck KEV).
Description
An insufficient session expiration vulnerability [CWE-613] vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to maintain access to network resources via an active SSLVPN session not terminated after a user's password change under particular conditions outside of the attacker's control
References (1)
Core 1
Core References
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-25-411
Scores
CVSS v3
5.6
EPSS
0.0029
EPSS Percentile
20.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
VulnCheck KEV
2026-07-23
CWE
CWE-613
Status
published
Products (5)
Fortinet/FortiOS
6.4.0 - 6.4.16
fortinet/fortios
6.4.0 - 7.4.1
Fortinet/FortiOS
7.0.0 - 7.0.19
Fortinet/FortiOS
7.2.0 - 7.2.13
Fortinet/FortiOS
7.4.0
Published
Dec 09, 2025
Tracked Since
Feb 18, 2026