Description
A improper authentication vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6 may allow a remote authenticated attacker to gain improper access control via an invalid token after entering a valid username and password
Published: 2026-11-10
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

Vendor Solution

Upgrade to FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.7 or above

Tracking

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Advisories

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History

Thu, 12 Nov 2026 13:15:00 +0000

Type Values Removed Values Added
Title Improper Authentication Enables Unauthorized Control Using Invalid Token After Valid Login

Thu, 12 Nov 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 11 Nov 2026 22:45:00 +0000

Type Values Removed Values Added
Title Improper Authentication Enables Unauthorized Control Using Invalid Token After Valid Login

Tue, 10 Nov 2026 20:15:00 +0000

Type Values Removed Values Added
Description A improper authentication vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6 may allow a remote authenticated attacker to gain improper access control via an invalid token after entering a valid username and password
First Time appeared Fortinet
Fortinet fortios
Weaknesses CWE-287
CPEs cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}


Subscriptions

Fortinet Fortios
cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-11-11T04:58:04.327Z

Reserved: 2026-11-03T14:32:12.954Z

Link: CVE-2026-121530

cve-icon Vulnrichment

Updated: 2026-11-10T20:34:45.787Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T20:18:56.927

Modified: 2026-11-12T19:14:29.340

Link: CVE-2026-121530

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-12T15:45:04Z

Weaknesses