ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)
History

Thu, 09 Oct 2025 12:15:00 +0000

Type Values Removed Values Added
Title openssh: From CVEorg collector
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 08 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Openbsd
Openbsd openssh
Vendors & Products Openbsd
Openbsd openssh

Tue, 07 Oct 2025 14:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 06 Oct 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 06 Oct 2025 18:30:00 +0000

Type Values Removed Values Added
Description ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)
Weaknesses CWE-159
References
Metrics cvssV3_1

{'score': 3.6, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-10-06T00:00:00.000Z

Updated: 2025-10-08T03:55:09.867Z

Reserved: 2025-10-06T00:00:00.000Z

Link: CVE-2025-61984

cve-icon Vulnrichment

Updated: 2025-10-06T18:36:46.952Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-06T19:15:36.157

Modified: 2025-10-08T19:38:32.610

Link: CVE-2025-61984

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-06T00:00:00Z

Links: CVE-2025-61984 - Bugzilla