How severe is CVE-2025-47712?

CVE-2025-47712 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-47712 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-47712?

CVE-2025-47712 affects Nbdkit Project Nbdkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-47712?

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

Does CVE-2025-47712 have an EU (EUVD) identifier?

Yes. CVE-2025-47712 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17436.

When was CVE-2025-47712 published?

CVE-2025-47712 was published on 2025-06-09 and last updated on 2026-06-30.

CVE-2025-47712

CVE-2025-47712 is a medium-severity vulnerability in Nbdkit Project Nbdkit with a CVSS 3.x base score of 6.5. 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-190.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17436
Weakness: CWE-190
Affected product: Nbdkit Project Nbdkit
Published: 2025-06-09
Last modified: 2026-06-30

Description

A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.

Frequently asked questions

What is CVE-2025-47712?: A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.
How severe is CVE-2025-47712?: CVE-2025-47712 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-47712 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-47712?: CVE-2025-47712 affects Nbdkit Project Nbdkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-47712?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-47712 have an EU (EUVD) identifier?: Yes. CVE-2025-47712 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17436.
When was CVE-2025-47712 published?: CVE-2025-47712 was published on 2025-06-09 and last updated on 2026-06-30.

References

Affected products (1)

cpe:2.3:a:nbdkit_project:nbdkit:-:*:*:*:*:*:*:*

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