CVE-2025-47712

MEDIUM

nbdkit - Denial of Service via Large Block Status Request

Title source: llm

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.

References (3)

Core 3

Core References

Third Party Advisory vdb-entry x_refsource_redhat

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

Issue Tracking, Third Party Advisory issue-tracking x_refsource_redhat

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

Third Party Advisory

https://lists.libguestfs.org/archives/list/[email protected]/thread/67E7AASHHADIY7VAD3FFW2I67LTWVWYF/

Scores

CVSS v3 6.5

EPSS 0.0036

EPSS Percentile 27.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-190

Status published

Products (1)

nbdkit_project/nbdkit

Published Jun 09, 2025

Tracked Since Feb 18, 2026