Name: Fortinet FortiOS: CVE-2026-106174: GUI Denial of Service
Creator: Rapid7
Published: 2026-10-27T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-106174, CWE-667, CVSS 7.5

A improper locking vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.4 through 7.6.6 may allow an unauthenticated attacker with network access to the device to cause a denial of service of the HTTPS management interface via crafted HTTP requests.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Fortios	—	Upgrade to the latest version of FortiOSUpgrade FortiOS to 7.6.7	Oct 14, 2026	Oct 13, 2026

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CVSS Details

Covered by Rapid7

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