CVE-2025-47712 MEDIUM

CVE-2025-47712: Nbd: nbdkit: integer overflow triggers an assertion resulting in denial of service

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-190
Published June 9, 2025
Last update January 8, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 9, 2025 CVE published
January 8, 2026 Record updated