Local code execution via relative path traversal
Published Apr 14, 2026 · Updated Apr 14, 2026
Relative path traversal in Fortinet FortiWeb allows local users to execute unauthorized code or commands on affected appliances. Fortinet has not disclosed the affected component, the pathname input, or how relative traversal sequences reach code or command execution. Exploitation requires high privileges and local access, with successful execution occurring in the vulnerable appliance process context.
Summary
What happened
Relative path traversal in Fortinet FortiWeb allows local users to execute unauthorized code or commands on affected appliances. Fortinet has not disclosed the affected component, the pathname input, or how relative traversal sequences reach code or command execution. Exploitation requires high privileges and local access, with successful execution occurring in the vulnerable appliance process context.
The record
- CVE
- CVE-2026-39814
- Published
- Apr 14, 2026
- Updated
- Apr 14, 2026
- Vendor
- Fortinet
- Product
- FortiWeb
- Classifications
- CWE-23
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Apr 14, 2026CVE publishedPublication date reported by the CVE source.
- Apr 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.4.1 <=7.4.12
- Affected versionversion=7.6.0 <=7.6.6
- Affected versionversion=8.0.0 <=8.0.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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