Microsoft security update for CVE-2025-47711
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47711. This page also shows what EchelonGraph holds for CVE-2025-47711, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products4
- azl3 nbdkit 1.35.3-7 on Azure Linux 3.0
- cbl2 nbdkit 1.35.3-4 on CBL Mariner 2.0
- cbl2 nbdkit 1.35.3-4 on CBL-Mariner 2.0
- cm2 nbdkit 1.35.3-4 on CBL Mariner 2.0
✅ Updates Microsoft lists: 2 updates
2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 1.35.3-4 |
| — | Security Update | 1.35.3-7 |
🧭 EchelonGraph on CVE-2025-47711
- EchelonGraph score
- 6.5 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
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.
Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2025-47711, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).