Improper Neutralization of Null Byte or NUL Character Affecting openssh-keysign package, versions <0:9.9p1-12.el10_1.rocky.0.1


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-ROCKY10-OPENSSHKEYSIGN-16794121
  • published22 May 2026
  • 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 Rocky-Linux:10 openssh-keysign to version 0:9.9p1-12.el10_1.rocky.0.1 or higher.
This issue was patched in RLSA-2025:23479.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh-keysign package and not the openssh-keysign package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:10 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