How severe is CVE-2025-58903?

CVE-2025-58903 has a CVSS 3.x base score of 2.7, rated low 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 low.

Is CVE-2025-58903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-58903?

CVE-2025-58903 affects Fortinet Fortios. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-58903?

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

Does CVE-2025-58903 have an EU (EUVD) identifier?

Yes. CVE-2025-58903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34248.

When was CVE-2025-58903 published?

CVE-2025-58903 was published on 2025-10-14 and last updated on 2026-06-17.

CVE-2025-58903

CVE-2025-58903 is a low-severity vulnerability in Fortinet Fortios with a CVSS 3.x base score of 2.7. 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-252.

Key facts

Severity: Low (CVSS 3.x base score 2.7)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34248
Weakness: CWE-252
Affected product: Fortinet Fortios
Published: 2025-10-14
Last modified: 2026-06-17

Description

An Unchecked Return Value vulnerability [CWE-252] in Fortinet FortiOS version 7.6.0 through 7.6.3 and before 7.4.8 API allows an authenticated user to cause a Null Pointer Dereference, crashing the http daemon via a specialy crafted request.

Frequently asked questions

What is CVE-2025-58903?: An Unchecked Return Value vulnerability [CWE-252] in Fortinet FortiOS version 7.6.0 through 7.6.3 and before 7.4.8 API allows an authenticated user to cause a Null Pointer Dereference, crashing the http daemon via a specialy crafted request.
How severe is CVE-2025-58903?: CVE-2025-58903 has a CVSS 3.x base score of 2.7, rated low 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 low.
Is CVE-2025-58903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-58903?: CVE-2025-58903 affects Fortinet Fortios. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-58903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-58903 have an EU (EUVD) identifier?: Yes. CVE-2025-58903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34248.
When was CVE-2025-58903 published?: CVE-2025-58903 was published on 2025-10-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

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