CVE-2026-59839
CVSSv3 Score: 5.0 An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in FortiOS, FortiPAM, FortiProxy and FortiSwitch Manager may allow a privileged authenticated attacker with physical access to the device to delete the file system via crafted CLI commands. Revised on 2026-07-14 00:00:00
CSIRTS triage
- What
- A privileged authenticated attacker may delete the file system via crafted CLI commands.
- Who is affected
- Privileged authenticated users of FortiOS, FortiPAM, FortiProxy, and FortiSwitch Manager.
- Urgency
- Remediation is critical to prevent potential system destruction.
- Action
- Restrict CLI command access to authorized personnel only.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-59839
Get an email if CVE-2026-59839 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.
Advisory coverage (4)
- medium[NEW] [medium] Fortinet FortiOS and FortiProxy: Multiple vulnerabilitiescert-bund · 2026-07-15
- unknownMultiple vulnerabilities in Fortinet products (July 15, 2026)cert-fr-avis · 2026-07-15
- mediumCVE-2026-59839: A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability…nvd · 2026-07-14
- unknownPath traversal in CLI command allows deletion of root file systemfortinet · 2026-07-14
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-59839)