Vulnerability · Published Sep 8, 2026 · Assigned by fortinet
CVE-2026-84391
Medium 5.9
In plain English
A medium-severity security flaw in FortiAnalyzer from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.4%top 64.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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>
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiAnalyzer | 7.6.3 – through 7.6.6 |
Weakness: CWE-457 · 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