CVE-2025-14946 Libnbd: libnbd: arbitrary code execution via ssh argument injection through a malicious uri
A malicious URI can inject SSH arguments in libnbd, allowing arbitrary code execution with user privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-14946?
CVE-2025-14946 is a medium-severity command injection vulnerability in Red Hat Enterprise Linux 10, published on 19 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-88
Which versions are affected by CVE-2025-14946?
Linux distribution packages (1)
libnbd openSUSE:Tumbleweed | All versions | 1.24.0-2.1 |
How do I fix CVE-2025-14946?
Apply the vendor's patch.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-14946 being exploited?
There is no known exploitation of CVE-2025-14946 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-14946, GHSA-mcgc-vc2p-cf7x, UBUNTU-CVE-2025-14946, openSUSE-SU-2025:15842-1.