Fortinet FortiOS: Mehrere Schwachstellen
WID-SEC-2026-3999 · first 07.04.2017 · updated 16.10.2026 · CVSS 9,8
What it is about
FortiOS ist ein gehärtetes Betriebssystem für FortiGate Plattformen. Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Fortinet FortiOS ausnutzen, um beliebigen Programmcode mit Benutzer- oder Administratorprivilegien auszuführen.
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
- beliebigen Programmcode mit Benutzer- oder Administratorprivilegien auszuführen
Am I affected?
Affected according to the BSI:
- Fortinet FortiOS <=5.4.2
- Fortinet FortiOS <=5.4.3
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Fortinet FortiOS <=5.4.2
- Fortinet FortiOS <=5.4.3
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)
- Fortinet Security Advisory FG-IR-16-069 vom 2017-04-05 fortiguard.com
- Fortinet Security Advisory FG-IR-16-041 vom 2017-04-05 fortiguard.com
CVE: CVE-2016-8496, CVE-2016-8497
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.