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…

EPSS: 0.003 (19.2th 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.