CVE-2025-47712
"nbdkit Blocksize Filter Denial of Service Vulnerability"
Description
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 in the nbdkit, leading to a denial of service.
INFO
Published Date :
June 9, 2025, 6:15 a.m.
Last Modified :
Aug. 21, 2025, 1:19 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-47712
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
CVE-2025-47712 vulnerability.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-47712.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2025-47712 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2365724 | Issue Tracking Third Party Advisory |
| https://lists.libguestfs.org/archives/list/[email protected]/thread/67E7AASHHADIY7VAD3FFW2I67LTWVWYF/ | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-47712 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-47712
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-47712 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-47712 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 21, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration AND OR *cpe:2.3:a:nbdkit_project:nbdkit:-:*:*:*:*:*:*:* OR cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_advanced_virtualization:8.0:*:*:*:*:*:*:* Added Reference Type Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2025-47712 Types: Third Party Advisory Added Reference Type Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2365724 Types: Issue Tracking, Third Party Advisory Added Reference Type Red Hat, Inc.: https://lists.libguestfs.org/archives/list/[email protected]/thread/67E7AASHHADIY7VAD3FFW2I67LTWVWYF/ Types: Third Party Advisory -
CVE Modified by [email protected]
Jul. 29, 2025
Action Type Old Value New Value Added Reference https://lists.libguestfs.org/archives/list/[email protected]/thread/67E7AASHHADIY7VAD3FFW2I67LTWVWYF/ -
New CVE Received by [email protected]
Jun. 09, 2025
Action Type Old Value New Value Added Description 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 in the nbdkit, leading to a denial of service. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-190 Added Reference https://access.redhat.com/security/cve/CVE-2025-47712 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2365724