CVE-2026-59839

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-14 · updated 2026-10-24
Weakness: CWE-22

Description

A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiPAM 1.8.0, FortiPAM 1.7.0 through 1.7.2, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to execute unauthorized code or commands via <insert attack vector here>

Affected products

Fortinet FortiOS (FortiGate): from 6.4.0 before 7.4.10; from 7.6.0 before 7.6.7 — fixed in 7.4.10, 7.6.7
Fortinet FortiPAM: from 1.0.0 before 1.7.3; 1.8.0 — fixed in 1.7.3
Fortinet FortiProxy: from 7.0.0 before 7.4.14; from 7.6.0 before 7.6.6 — fixed in 7.4.14, 7.6.6

How to fix

Upgrade to a fixed version: Fortinet FortiOS (FortiGate) 7.4.10, 7.6.7; Fortinet FortiPAM 1.7.3; Fortinet FortiProxy 7.4.14, 7.6.6. Check the vendor advisory for mitigations.

References

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