CVE-2025-14946
Libnbd: libnbd: arbitrary code execution via ssh argument injection through a malicious uri
Description
A flaw was found in libnbd. A malicious actor could exploit this by convincing libnbd to open a specially crafted Uniform Resource Identifier (URI). This vulnerability arises because non-standard hostnames starting with '-o' are incorrectly interpreted as arguments to the Secure Shell (SSH) process, rather than as hostnames. This could lead to arbitrary code execution with the privileges of the user running libnbd.
INFO
Published Date :
Dec. 19, 2025, 1:16 p.m.
Last Modified :
Dec. 19, 2025, 1:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-14946
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.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update libnbd to the latest secure version.
- Ensure non-standard hostnames are validated.
- Sanitize user-supplied URI components.
- Review SSH argument handling.
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-2025-14946.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2025-14946 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2423789 | |
| https://libguestfs.org/libnbd-release-notes-1.24.1.html#Security |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-14946 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-2025-14946
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-2025-14946 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-14946 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.
-
New CVE Received by [email protected]
Dec. 19, 2025
Action Type Old Value New Value Added Description A flaw was found in libnbd. A malicious actor could exploit this by convincing libnbd to open a specially crafted Uniform Resource Identifier (URI). This vulnerability arises because non-standard hostnames starting with '-o' are incorrectly interpreted as arguments to the Secure Shell (SSH) process, rather than as hostnames. This could lead to arbitrary code execution with the privileges of the user running libnbd. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L Added CWE CWE-88 Added Reference https://access.redhat.com/security/cve/CVE-2025-14946 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2423789 Added Reference https://libguestfs.org/libnbd-release-notes-1.24.1.html#Security