CVE-2025-47711 — MEDIUM (6.5)

Vulnerability 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 Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Nbdkit Project	Nbdkit	-
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux Advanced Virtualization	8.0

Related Weaknesses (CWE)

CWE-193

References

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

FAQ

What is CVE-2025-47711?

CVE-2025-47711 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 respond...

How severe is CVE-2025-47711?

CVE-2025-47711 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-47711?

Check the references section above for vendor advisories and patch information. Affected products include: Nbdkit Project Nbdkit, Redhat Enterprise Linux, Redhat Enterprise Linux Advanced Virtualization.