Path Traversal in Fortinet Fortios
CVE-2026-59839
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>
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (15.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Fortinet Fortios — versions 7.6.0, 7.4.0, 7.2.0
- Fortinet Fortipam — versions 1.8.0, 1.7.0, 1.6.0
- Fortinet Fortiproxy — versions 7.6.0, 7.4.0, 7.2.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-59839?
- CVE-2026-59839 is a medium-severity vulnerability in Fortinet Fortios, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-07-14.
- How severe is CVE-2026-59839?
- Medium severity. CVSS v3 base score is 5.5 out of 10.