CVE-2023-51385

Advisory lineage Upstream: 0 Downstream: 22
Modified
Published: 18 Dec 2023, 00:00
Last modified:12 May 2026, 11:21

Vulnerability Summary

Overall Risk (default)
medium
29/100
CVSS Score
6.5 MEDIUM
v3.1 (cve.org)
EPSS Score
17.23% MEDIUM
17% probability +0.71%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Dec 2023, 00:00
Published
Vulnerability first disclosed
12 May 2026, 11:21
Last Modified
Vulnerability information updated

Description

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Trends

Current EPSS score: 17.23%• Percentile: 95%

Techniques & Countermeasures

  • CWE-78•Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

    The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Affected Systems

  • debian•debian_linux

    10.0 | 11.0 | 12.0

  • openbsd•openssh

    < 9.6

References (16)