Improper Neutralization of Null Byte or NUL Character Affecting openssh package, versions <0:8.0p1-27.0.1.el8_10


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-ORACLE8-OPENSSH-14541391
  • published20 Dec 2025
  • disclosed6 Oct 2025

Introduced: 6 Oct 2025

CVE-2025-61985  (opens in a new tab)
CWE-158  (opens in a new tab)

How to fix?

Upgrade Oracle:8 openssh to version 0:8.0p1-27.0.1.el8_10 or higher.
This issue was patched in ELSA-2025-23481.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code execution when a ProxyCommand is used.

CVSS Base Scores

version 3.1