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CVE-2025-14946

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Date: December 19, 2025

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.

Severity Score

Severity Score

Weakness Type (CWE)

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

CWE-88

Top Fix

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Upgrade Version

Upgrade to version https://gitlab.com/nbdkit/libnbd.git - v1.22.5;https://gitlab.com/nbdkit/libnbd.git - v1.23.9

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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