High severity · published Mar 10, 2026
CVE-2025-54820
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…
8.1
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
FortiManager · Fortinet
6.4.0 before 7.2.11; 7.4.0 before 7.4.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-54820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-54820
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-26-098
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