CVE-2021-26110 Privilege escalation in Fortinet FortiOS, FortiProxy

What is CVE-2021-26110?

CVE-2021-26110 is a high-severity vulnerability in Fortinet Fortios, published on 8 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Which versions are affected by CVE-2021-26110?

It affects 2 products.

Products include Fortinet Fortios, Fortinet Fortiproxy.

How do I fix CVE-2021-26110?

No fix has been published for CVE-2021-26110 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-26110 being exploited?

There is no known exploitation of CVE-2021-26110 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortios

• CVE-2024-23113 Fortinet Multiple Products Format String Exploited Critical 9.8
• CVE-2022-40684 Fortinet Multiple Products Authentication Bypass Exploited Critical 9.8
• CVE-2024-55591 Fortinet FortiOS and FortiProxy Authentication Bypass Exploited Critical 9.6
• CVE-2024-21762 Fortinet FortiOS Out-of-Bound Write Exploited Critical 9.6
• CVE-2022-42475 Fortinet FortiOS Heap-Based Buffer Overflow Exploited Critical 9.3

All Fortinet Fortios vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-q75w-8h5p-w5j9.