CVE-2021-26110: Fortinet FortiOS

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

An improper access control vulnerability [CWE-284] in FortiOS autod daemon 7.0.0, 6.4.6 and below, 6.2.9 and below, 6.0.12 and below and FortiProxy 2.0.1 and below, 1.2.9 and below may allow an authenticated low-privileged attacker to escalate their privileges to super_admin via a specific crafted configuration of fabric automation CLI script and auto-script features.

Affected products

• Fortinet FortiOS: from 5.6.0, up to and including 5.6.14; from 6.0.0, up to and including 6.0.12; from 6.2.0, up to and including 6.2.9; from 6.4.0, up to and including 6.4.6; version 7.0.0 only
• Fortinet FortiProxy: from 1.0.0, up to and including 1.0.7; from 1.1.0, up to and including 1.1.6; from 1.2.0, up to and including 1.2.9; version 2.0.0 only; version 2.0.1 only

Published 2021-12-08. Last modified 2026-06-17.