Integer overflow in Nbdkit_project Nbdkit
CVE-2025-47712
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…
Vulnerability class: Integer Overflow
EPSS: 0.004 (28.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Nbdkit_project Nbdkit
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8 Advanced Virtualization
- Red Hat Enterprise Linux 9
- Red Hat In-vehicle Operating System 1
- Redhat Enterprise_linux — versions 7.0, 8.0, 9.0
- Redhat Enterprise_linux_advanced_virtualization — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-47712?
- CVE-2025-47712 is a medium-severity vulnerability in Nbdkit_project Nbdkit, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2025-06-09.
- How severe is CVE-2025-47712?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-47712 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.