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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this issue, ensure that applications utilizing libnbd do not process Uniform Resource Identifiers (URIs) from untrusted or unverified sources. This vulnerability requires a malicious actor to convince libnbd to open a specially crafted URI, therefore restricting the sources of URIs processed by libnbd can reduce exposure.

History

Sat, 20 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 19 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 19 Dec 2025 13:15:00 +0000

Type Values Removed Values 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.
Title Libnbd: libnbd: arbitrary code execution via ssh argument injection through a malicious uri
First Time appeared Redhat
Redhat container Native Virtualization
Redhat enterprise Linux
Weaknesses CWE-88
CPEs cpe:/a:redhat:container_native_virtualization:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat container Native Virtualization
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-12-22T21:28:33.841Z

Reserved: 2025-12-19T03:34:44.633Z

Link: CVE-2025-14946

cve-icon Vulnrichment

Updated: 2025-12-19T15:13:38.269Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-19T13:16:03.127

Modified: 2025-12-19T18:00:18.330

Link: CVE-2025-14946

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-12-16T00:00:00Z

Links: CVE-2025-14946 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses