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CVE-2025-64446: Fortinet FortiWeb Path Traversal Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-11-14
• EPSS: 91.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-14 · updated 2026-10-18
• Weakness: CWE-23

Description

A relative path traversal vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.

Affected products

• Fortinet FortiWeb: from 7.0.0 before 7.0.12; from 7.2.0 before 7.2.12; from 7.4.0 before 7.4.10; from 7.6.0 before 7.6.5; from 8.0.0 before 8.0.2 — fixed in 7.0.12, 7.2.12, 7.4.10, 7.6.5, 8.0.2

How to fix

Upgrade to a fixed version: Fortinet FortiWeb 7.0.12, 7.2.12, 7.4.10, 7.6.5. Check the vendor advisory for mitigations.

References

• https://fortiguard.fortinet.com/psirt/FG-IR-25-910
• https://github.com/watchtowrlabs/watchTowr-vs-Fortiweb-AuthBypass
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-64446

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