Fortinet FortiClient EMS: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2026-2331 · first 15.07.2026 · updated 15.07.2026 · CVSS 7,5
What it is about
FortiClient ist ein Endgeräteschutz mit einem integrierten VPN-Client. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Fortinet FortiClient EMS ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- Fortinet FortiClient EMS <7.4.6
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Fortinet FortiClient EMS 7.4.6
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-26-147 vom 2026-07-14 www.fortiguard.com
CVE: CVE-2026-59836
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.