Fortinet FortiClient: Schwachstelle ermöglicht SQL-Injection
WID-SEC-2026-0084 · first 14.01.2026 · updated 14.01.2026 · CVSS 7,2
What it is about
FortiClient ist ein Endgeräteschutz mit einem integrierten VPN-Client. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Fortinet FortiClient ausnutzen, um einen SQL-Injection 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 SQL-Injection Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Fortinet FortiClient EMS <7.4.5
- Fortinet FortiClient EMS <7.2.12
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 7.4.5
- Fortinet FortiClient EMS 7.2.12
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 PSIRT Advisory FG-IR-25-735 vom 2026-01-13 www.fortiguard.com
CVE: CVE-2025-59922
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.