CVE-2025-14946

Code execution via SSH hostname argument injection

Published Dec 19, 2025 · Updated Dec 19, 2025

Argument injection in libnbd 1.22.0 through 1.22.4 and 1.23.0 through 1.23.8 allows local users to execute code via a crafted nbd+ssh URI. The nbd_connect_uri path accepts a hostname beginning with -o and passes it to SSH as an option instead of treating it solely as a hostname. Exploitation requires a user or application to open the attacker-controlled URI, and commands run with the privileges of the libnbd process.

CVSS severity4.8
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Argument injection in libnbd 1.22.0 through 1.22.4 and 1.23.0 through 1.23.8 allows local users to execute code via a crafted nbd+ssh URI. The nbd_connect_uri path accepts a hostname beginning with -o and passes it to SSH as an option instead of treating it solely as a hostname. Exploitation requires a user or application to open the attacker-controlled URI, and commands run with the privileges of the libnbd process.

The record

CVE
CVE-2025-14946
Published
Dec 19, 2025
Updated
Dec 19, 2025
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-88, T1204
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.

Published CVSS scores

4.8Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
T1204User Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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