CVE-2025-47711

MEDIUM

nbdkit - Denial of Service via Large Data Block Response

Title source: llm
STIX 2.1

Description

There's a flaw in the nbdkit server when handling responses from its plugins regarding the status of data blocks. If a client makes a specific request for a very large data range, and a plugin responds with an even larger single block, the nbdkit server can encounter a critical internal error, leading to a denial-of-service.

References (2)

Core 2
Core References
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2025-47711
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2365687

Scores

CVSS v3 6.5
EPSS 0.0030
EPSS Percentile 21.2%
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-193
Status published
Products (6)
nbdkit_project/nbdkit
redhat/enterprise_linux 7.0
redhat/enterprise_linux 8.0
redhat/enterprise_linux 9.0
redhat/enterprise_linux 10.0
redhat/enterprise_linux_advanced_virtualization 8.0
Published Jun 09, 2025
Tracked Since Feb 18, 2026