4.8

CVE-2025-14946: red hat libnbd Argument Injection

CVSS: 4.8v3.1MediumDeferred
AliasesUBUNTU-CVE-2025-14946DEBIAN-CVE-2025-14946openSUSE-SU-2025:15842-1
Published 19-12-2025Last modified 22-12-2025
Open JSON

Vulnerability summary

CVE-2025-14946 is a medium (CVSS 4.8) Argument Injection vulnerability in red hat libnbd. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.3% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-12-2025
    PublishedVulnerability first disclosed.
  2. 22-12-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • libnbdAll versions (No fix recorded) | < 1.22.5-1
Opensuse1 product
  • libnbd&distro=openSUSE Tumbleweed< 1.24.0-2.1
Red hat1 product
  • libnbd≥ 1.22.0, < 1.22.5 | ≥ 1.23.0, < 1.23.9
Ubuntu1 product
  • libnbdAll versions (No fix recorded)

4 vendors · 4 products

References

8 links