CVE-2025-47711 Information

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.

CVSS Vector

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

Reference

https://access.redhat.com/security/cve/CVE-2025-47711 https://bugzilla.redhat.com/show_bug.cgi?id=2365687

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

4.3