Link following in FortiClient (Linux) - CVE-2026-24018
Published: March 10, 2026 / Updated: March 14, 2026
Vulnerability identifier: #VU123719
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-24018
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an insecure link following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with root privileges.
Affected software
FortiClient (Linux)
How to mitigate CVE-2026-24018
Install updates from vendor's website.
FortiClient (Linux) - addressed in versions 7.2.13, 7.4.5