Fortinet FortiAnalyzer: Schwachstelle ermöglicht Denial of Service
WID-SEC-2026-3259 · first 09.09.2026 · updated 09.09.2026 · CVSS 6,5
What it is about
FortiAnalyzer ist eine Plattform zur Protokollverwaltung, Analyse und Berichterstellung. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Fortinet FortiAnalyzer ausnutzen, um einen Denial of Service Angriff durchzuführen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Fortinet FortiAnalyzer <7.6.7
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Fortinet FortiAnalyzer 7.6.7
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- FortiGuard Labs PSIRT Advisory FG-IR-26-172 vom 2026-09-08 www.fortiguard.com
CVE: CVE-2026-84391
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.