CVE-2025-14946 MEDIUM

CVE-2025-14946: Libnbd: libnbd: arbitrary code execution via ssh argument injection through a malicious uri

Vendor Red Hat
Product libnbd
Weakness CWE-88
Published December 19, 2025
Last update December 22, 2025

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 19, 2025 CVE published
December 22, 2025 Record updated