CVE-2025-31514: Fortinet FortiOS

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

A insertion of sensitive information into log file vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to information disclosure via <insert attack vector here>

Affected products

• Fortinet FortiOS: from 6.4.0, before 7.6.4 (fixed in 7.6.4)
• Fortinet FortiProxy: from 7.0.0, before 7.6.4 (fixed in 7.6.4)

Published 2025-10-14. Last modified 2026-06-17.