CVE-2025-54820 Memory corruption in FortiManager

What is CVE-2025-54820?

CVE-2025-54820 is a high-severity memory corruption vulnerability in Fortinet Fortimanager, published on 10 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiManager 7.4.0 through 7.4.2, FortiManager 7.2.0 through 7.2.10, FortiManager 6.4 all versions may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. The success of the attack depends on the ability to bypass the stack protection mechanisms.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2025-54820?

It affects 1 product.

Products include Fortinet Fortimanager.

How do I fix CVE-2025-54820?

No fix has been published for CVE-2025-54820 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-54820 being exploited?

There is no known exploitation of CVE-2025-54820 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortimanager

• CVE-2024-47575 Fortinet FortiManager Missing Authentication Exploited Critical 9.8
• CVE-2015-3613 Privilege escalation in n/a Critical 9.8
• CVE-2019-6695 Security feature bypass in Fortinet FortiManager Critical 9.8
• CVE-2019-17654 Cross-site request forgery in Fortinet FortiManager High 8.8
• CVE-2015-3611 Command injection in n/a High 8.8

All Fortinet Fortimanager vulnerabilities

Sources

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

Also known as GHSA-qq5m-xh4x-hv7f.