CVE-2025-47712

Published: Jun 9, 2025Modified: Jan 8, 2026

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: NVD (Secondary)

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.

Affected (1)

Products: Nbdkit Project: Nbdkit

Nbdkit Project

1 product

Nbdkit

Configuration A

1 vulnerable · 5 platform

Vulnerable Software	Affected Versions
Nbdkit Project Nbdkit	All versions

Running on/with	Platform Versions
Redhat Enterprise Linux	Version 10.0
Redhat Enterprise Linux	Version 7.0
Redhat Enterprise Linux	Version 8.0
Redhat Enterprise Linux	Version 9.0
Redhat Enterprise Linux Advanced Virtualization	Version 8.0

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (3)

https://access.redhat.com/security/cve/CVE-2025-47712

Source: secalert@redhat.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2365724

Source: secalert@redhat.com

Issue TrackingThird Party Advisory

https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/67E7AASHHADIY7VAD3FFW2I67LTWVWYF/

Source: secalert@redhat.com

Third Party Advisory

Timeline

No history available yet.