CVE-2026-106174

Improper Locking Allows Unauthenticated DoS of FortiOS HTTPS Management Interface

Published Oct 27, 2026 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Upgrade to FortiOS version 8.0.1 or above Upgrade to FortiOS version 7.6.7 or above

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Improper Locking Allows Unauthenticated DoS of FortiOS HTTPS Management Interface
Type Values Removed Values Added
Description 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.
First Time appeared Fortinet
Fortinet fortios
Weaknesses CWE-667
CPEs cpe:2.3:o:fortinet:fortios:7.6.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:8.0.0:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
fortinet
Published
Updated
Nov 10, 2026, 12:49 PM
Reserved
Oct 6, 2026, 4:19 PM
Status
Awaiting Analysis
Published
Oct 27, 2026, 7:16 AM
Modified
Nov 10, 2026, 1:18 PM