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CVE-2025-68686: Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2026-07-27
• EPSS: 29.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-10 · updated 2026-07-28
• Weakness: CWE-200

Description

An Exposure of Sensitive Information to an Unauthorized Actor vulnerability [CWE-200] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.1, FortiOS 7.4.0 through 7.4.6, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow a remote unauthenticated attacker to bypass the patch developed for the symbolic link persistency mechanism observed in some post-exploit cases, via crafted HTTP requests. An attacker would need first to have compromised the product via another vulnerability, at filesystem level.

Affected products

• Fortinet FortiOS (FortiGate): from 6.4.0 before 7.4.7; from 7.6.0 before 7.6.2 — fixed in 7.4.7, 7.6.2

How to fix

Upgrade to a fixed version: Fortinet FortiOS (FortiGate) 7.4.7, 7.6.2. Check the vendor advisory for mitigations.

References

• https://fortiguard.fortinet.com/psirt/FG-IR-25-934
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-68686

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