Fortinet FortiClientEMS: Mehrere Schwachstellen
WID-SEC-2026-1092 · first 15.04.2026 · updated 15.04.2026 · CVSS 7,6
What it is about
FortiClient ist ein Endgeräteschutz mit einem integrierten VPN-Client. Ein Angreifer kann mehrere Schwachstellen in Fortinet FortiClientEMS ausnutzen, um Informationen offenzulegen oder eine SQL Injection durchzuführen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- Informationen offenzulegen oder eine SQL Injection durchzuführen
Am I affected?
Affected according to the BSI:
- Fortinet FortiClient EMS <7.4.6
- Fortinet FortiClient EMS <7.2.13
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
- Fortinet FortiClient EMS 7.2.13
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-26-102 vom 2026-04-14 www.fortiguard.com
- FortiGuard Labs PSIRT Advisory FG-IR-26-107 vom 2026-04-14 www.fortiguard.com
CVE: CVE-2026-39809, CVE-2026-39810
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.