CVE-2025-54820
CVE-2025-54820 is a high-severity vulnerability in Fortinet Fortimanager with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- EPSS exploit prediction: 1% (54th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-208493
- Weakness: CWE-787
- Affected product: Fortinet Fortimanager
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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 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.
- How severe is CVE-2025-54820?
- CVE-2025-54820 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-54820 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-54820?
- CVE-2025-54820 affects Fortinet Fortimanager. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-54820?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-54820 have an EU (EUVD) identifier?
- Yes. CVE-2025-54820 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208493.
- When was CVE-2025-54820 published?
- CVE-2025-54820 was published on 2026-03-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:*
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