Use of Uninitialized Variable in FortiAnalyzer - CVE-2026-84391
Published: September 9, 2026
Vulnerability identifier: #VU148725
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84391
CWE-ID: CWE-457
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized variable in SNMP. A remote authenticated attacker with user permission can cause a denial of service via SNMP GETBULK requests.
Affected software
FortiAnalyzer
How to mitigate CVE-2026-84391
Install update from vendor's website.
FortiAnalyzer - update to 7.6.7