CVE-2025-47712

6.5 mediumEPSS 0.5%

Medium (6.5) in nbdkit project nbdkit. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.5 medium

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-190
Published: 2025-06-09
Modified: 2026-06-30
Record from: the NVD, synced 2026-10-19

Affected

nbdkit_project:nbdkit

References

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

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