VULNERABILITY INTELLIGENCE
CVE-2025-47711
CVSS score4.3 MEDIUM
EPSS probability0.46%
CISA KEVNot currently listed
Published2025-06-09
Last modified2026-06-30
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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.
Weakness classification
- CWE-193: Off-by-one Error
Primary references
- secalert@redhat.com — Vendor Advisory
- secalert@redhat.com — Issue Tracking
- secalert@redhat.com