How severe is CVE-2025-4791?

CVE-2025-4791 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-4791 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4791?

CVE-2025-4791 affects Freefloat Freefloat Ftp Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4791?

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-2025-4791 have an EU (EUVD) identifier?

Yes. CVE-2025-4791 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15534.

When was CVE-2025-4791 published?

CVE-2025-4791 was published on 2025-05-16 and last updated on 2026-06-17.

CVE-2025-4791

CVE-2025-4791 is a high-severity vulnerability in Freefloat Freefloat Ftp Server with a CVSS 3.x base score of 7.3. 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 7.3)
CVSS v2: 7.5
CVSS v4: 6.9
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15534
Weakness: CWE-787
Affected product: Freefloat Freefloat Ftp Server
Published: 2025-05-16
Last modified: 2026-06-17

Description

A vulnerability has been found in FreeFloat FTP Server 1.0 and classified as critical. This vulnerability affects unknown code of the component HASH Command Handler. The manipulation leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-4791?: A vulnerability has been found in FreeFloat FTP Server 1.0 and classified as critical. This vulnerability affects unknown code of the component HASH Command Handler. The manipulation leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-4791?: CVE-2025-4791 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-4791 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4791?: CVE-2025-4791 affects Freefloat Freefloat Ftp Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4791?: 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-2025-4791 have an EU (EUVD) identifier?: Yes. CVE-2025-4791 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15534.
When was CVE-2025-4791 published?: CVE-2025-4791 was published on 2025-05-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:freefloat:freefloat_ftp_server:1.0:*:*:*:*:*:*:*

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