Overview
What is CVE-2026-84391?
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>
Source: NVD
CVE intelligence
CVE-2026-84391
Vulnerability intelligence
6.5MEDIUMCVSS out of 10
What this means
Review the available evidence
CVE-2026-84391 and is rated Medium severity with a CVSS score of 6.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CISA KEVNot listedBased on the latest collected catalog
EPSS0.4%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships