CVE-2025-62631
MediumCVSS 5.6Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
An insufficient session expiration vulnerability [CWE-613] in Fortinet FortiOS 7.4.0, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows an 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.
Risk Assessment
After a user changes their password, an attacker may continue using the active SSLVPN session, gaining unauthorized access to the internal network.
Recommendation
Update FortiOS to a version containing the fix and consider enforcing termination of active SSLVPN sessions after password changes.
Other vulnerabilities in Fortinet FortiOS
See all- CVE-2017-7738High
CVE-2017-7738 is an Information Disclosure vulnerability in Fortinet FortiOS versions 5.6.0 to 5.6.2, 5.4.0 to 5.4.5, and 5.2 and below, allowing an admin user with super_admin privileges to view current SSL VPN web portal session info, which may contain user credentials.
- CVE-2025-61624MediumActively exploited
A Path Traversal vulnerability in Fortinet FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager. An authenticated attacker with admin profile and read-write permissions can exploit it to write or delete arbitrary files via specific CLI commands.
- CVE-2024-23113CriticalActively exploited
A use of externally-controlled format string in Fortinet FortiOS, FortiProxy, FortiPAM, and FortiSwitchManager allows an attacker to execute unauthorized code or commands via specially crafted packets.
- CVE-2024-21762CriticalActively exploited
An out-of-bounds write in Fortinet FortiOS and FortiProxy allows an attacker to execute unauthorized code or commands via specifically crafted requests. Affects multiple versions of FortiOS and FortiProxy.
- CVE-2022-41328MediumActively exploited
A improper limitation of a pathname to a restricted directory vulnerability ('path traversal') [CWE-22] in Fortinet FortiOS version 7.2.0 through 7.2.3, 7.0.0 through 7.0.9 and before 6.4.11 allows a privileged attacker to read and write files on the underlying Linux system via crafted CLI commands.
- CVE-2018-13374MediumActively exploited
An improper access control vulnerability in Fortinet FortiOS and FortiADC allows an attacker to obtain LDAP server login credentials configured in FortiGate by pointing a connectivity test to a rogue LDAP server.
- CVE-2026-84392Low
A NULL Pointer Dereference vulnerability (CWE-476) in Fortinet FortiOS 7.4 and 7.2 (all versions), FortiPAM (multiple versions), and FortiProxy 7.6.0-7.6.6, 7.4, and 7.2 (all versions) may allow an authenticated attacker to crash the httpsd daemon via crafted HTTP requests.
- CVE-2025-67862Medium
Fortinet FortiOS and FortiProxy in multiple versions contain a vulnerability exposing an internal asset to an unsafe debug access level. This allows an authenticated admin to execute Lua scripts via crafted CLI commands.
- CVE-2025-53844High
An out-of-bounds write vulnerability in Fortinet FortiOS versions 7.6.0 through 7.6.3, 7.4.0 through 7.4.8, and 7.2.0 through 7.2.11 allows an attacker to execute unauthorized code or commands via specially crafted packets.
- CVE-2025-58413High
A stack-based buffer overflow vulnerability exists in Fortinet FortiOS versions 7.6.0 through 7.6.3, 7.4.0 through 7.4.8, and all versions of 7.2, 7.0, 6.4, 6.2, and 6.0. An attacker can execute unauthorized code or commands via specially crafted packets.
Original NVD description (English source)
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
Vulnerability data from NVD (NIST) · CISA KEV · EPSS