An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows remote authenticated users to execute arbitrary commands via a crafted certificate subject

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History

Tue, 08 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 07 Sep 2026 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Openvpn
Openvpn openvpn
Vendors & Products Openvpn
Openvpn openvpn

Mon, 07 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title OpenVPN: OpenVPN: Arbitrary command execution via crafted certificate subject
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important


Mon, 07 Sep 2026 08:15:00 +0000

Type Values Removed Values Added
Description An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows remote authenticated users to execute arbitrary commands via a crafted certificate subject
Weaknesses CWE-78
CWE-88
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: OpenVPN

Published:

Updated: 2026-09-08T15:00:15.389Z

Reserved: 2026-09-01T13:36:26.707Z

Link: CVE-2026-84256

cve-icon Vulnrichment

Updated: 2026-09-08T15:00:11.642Z

cve-icon NVD

Status : Received

Published: 2026-09-07T08:17:13.777

Modified: 2026-09-08T15:18:51.360

Link: CVE-2026-84256

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-07T07:55:27Z

Links: CVE-2026-84256 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-07T16:00:13Z

Weaknesses