SB2025101504 - Insufficient Session Expiration in FortiOS
Published: October 15, 2025
Security Bulletin ID
SB2025101504
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient Session Expiration (CVE-ID: CVE-2025-25252)
CWE-ID: CWE-613 - Insufficient Session Expiration
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The vulnerability exists due to insufficient session expiration in SSLVPN using SAML authentication. 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 can access or re-open that session via re-use of SAML record.
Remediation
Install update from vendor's website.