FortiManager and FortiAnalyzer
CVE-2026-84391: Use of uninitialized variable in FortiAnalyzer
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>
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 5.9
EPSS0.41%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiAnalyzer 7.6.3 to 7.6.6 | 7.6.7 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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>
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.