CVE-2025-53847 Missing authorization in FortiOS

What is CVE-2025-53847?

CVE-2025-53847 is a medium-severity missing authorization vulnerability in Fortinet Fortios, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A missing authentication for critical function vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiOS 6.2.9 through 6.2.17 allows attacker to execute unauthorized code or commands via specially crafted packets.

Weakness: CWE-306

Which versions are affected by CVE-2025-53847?

It affects 1 product.

Products include Fortinet Fortios.

How do I fix CVE-2025-53847?

No fix has been published for CVE-2025-53847 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-53847 being exploited?

There is no known exploitation of CVE-2025-53847 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-v55w-rvx7-pq26.