A use of uninitialized variable vulnerability in Fortinet FortiAnalyzer 7.6.3 through 7.6.6 may allow attacker to denial of service via <insert attack vector here>

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Fortinet FortiAnalyzer unaffected
Version Status Constraints
7.6.3 affected ≤ 7.6.6

No data.

No data.

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Vendors Products
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Fortianalyzer Subscribe

Project Subscriptions

Vendors Products
Fortinet Subscribe
Fortianalyzer Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to FortiAnalyzer version 8.0.0 or above Upgrade to FortiAnalyzer version 7.6.7 or above

Workaround

No workaround given by the vendor.

References
Link Providers
https://fortiguard.fortinet.com/psirt/FG-IR-26-172 cve-icon cve-icon
History

Tue, 08 Sep 2026 18:15:00 +0000

Type Values Removed Values Added
Title Uninitialized Variable Leading to Denial of Service in FortiAnalyzer 7.6.3-7.6.6

Tue, 08 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description A use of uninitialized variable vulnerability in Fortinet FortiAnalyzer 7.6.3 through 7.6.6 may allow attacker to denial of service via <insert attack vector here>
First Time appeared Fortinet
Fortinet fortianalyzer
Weaknesses CWE-457
CPEs cpe:2.3:o:fortinet:fortianalyzer:7.6.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortianalyzer:7.6.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortianalyzer:7.6.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortianalyzer:7.6.6:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortianalyzer
References
Metrics cvssV3_1

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

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-09-08T17:29:43.459Z

Reserved: 2026-09-01T16:36:11.927Z

Link: CVE-2026-84391

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-08T17:18:37.520

Modified: 2026-09-08T18:35:10.323

Link: CVE-2026-84391

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T18:00:11Z

Weaknesses