Fortinet FortiClientLinux: Schwachstelle ermöglicht Privilegieneskalation
WID-SEC-2026-0665 · first 11.03.2026 · updated 11.03.2026 · CVSS 7,8
What it is about
FortiClient ist ein Endgeräteschutz mit einem integrierten VPN-Client. Ein lokaler Angreifer kann eine Schwachstelle in Fortinet FortiClientLinux ausnutzen, um seine Privilegien auf Root zu erhöhen.
Under what conditions?
Only with access to the device or an account on it. Often the second step after a phishing email.
What can happen in the worst case
An attacker could use the vulnerability to
- seine Privilegien auf Root zu erhöhen
Am I affected?
Affected according to the BSI:
- Fortinet FortiClient Linux <7.4.5
- Fortinet FortiClient Linux <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 Linux 7.4.5
- Fortinet FortiClient Linux 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 PSIRT Advisory FG-IR-26-083 vom 2026-03-10 www.fortiguard.com
CVE: CVE-2026-24018
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.