What is CVE-2025-62631?

CVE-2025-62631 is a medium-severity vulnerability in Fortinet Fortios, classified under Insufficient Session Expiration. CVSS score: 5.6/10. Published 2025-12-09.

How severe is CVE-2025-62631?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Vulnerability in Fortinet Fortios

CVE-2025-62631

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

EPSS: 0.003 (20.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Fortinet Fortios — versions 7.4.0, 7.2.0, 7.0.0

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-62631?: CVE-2025-62631 is a medium-severity vulnerability in Fortinet Fortios, classified under Insufficient Session Expiration. CVSS score: 5.6/10. Published 2025-12-09.
How severe is CVE-2025-62631?: Medium severity. CVSS v3 base score is 5.6 out of 10.