CVE-2025-47712

Name: CVE-2025-47712
Creator: NVD / NIST
Published: 2025-06-09T06:15:25.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.36%

Last modified Jun 25, 2026

CVE-2025-47712 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.36%

28.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Nbdkit Project	Nbdkit	All versions

References

https://access.redhat.com/security/cve/CVE-2025-47712Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2365724Issue Tracking, Third Party Advisory
https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/67E7AASHHADIY7VAD3FFW2I67LTWVWYF/Third Party Advisory

Timeline

Published: Jun 9, 2025
Last Modified: Jun 25, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-47712?

How severe is CVE-2025-47712?

CVE-2025-47712 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2025-47712?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-47712?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST