How severe is CVE-2025-54838?

CVE-2025-54838 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-54838 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54838?

CVE-2025-54838 affects Fortinet Fortiportal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54838?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-54838 have an EU (EUVD) identifier?

Yes. CVE-2025-54838 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202273.

When was CVE-2025-54838 published?

CVE-2025-54838 was published on 2025-12-09 and last updated on 2026-06-17.

CVE-2025-54838

CVE-2025-54838 is a medium-severity vulnerability in Fortinet Fortiportal with a CVSS 3.x base score of 6.8. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202273
Weakness: CWE-863
Affected product: Fortinet Fortiportal
Published: 2025-12-09
Last modified: 2026-06-17

Description

An Incorrect Authorization vulnerability [CWE-863] in FortiPortal 7.4.0 through 7.4.5 may allow an authenticated attacker to reboot a shared FortiGate device via crafted HTTP requests.

Frequently asked questions

What is CVE-2025-54838?: An Incorrect Authorization vulnerability [CWE-863] in FortiPortal 7.4.0 through 7.4.5 may allow an authenticated attacker to reboot a shared FortiGate device via crafted HTTP requests.
How severe is CVE-2025-54838?: CVE-2025-54838 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-54838 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54838?: CVE-2025-54838 affects Fortinet Fortiportal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54838?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-54838 have an EU (EUVD) identifier?: Yes. CVE-2025-54838 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202273.
When was CVE-2025-54838 published?: CVE-2025-54838 was published on 2025-12-09 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-032

Affected products (1)

cpe:2.3:a:fortinet:fortiportal:*:*:*:*:*:*:*:*

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CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
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