OpenVPN 2.0.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to cause a denial of service via a NULL DACL on named IPC objects

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00101.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OpenVPN OpenVPN unaffected
Version Status Constraints
2.0.0 affected ≤ 2.6.22
2.7_alpha1 affected ≤ 2.7.6

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://community.openvpn.net/Security%20Announcements/CVE-2026-82312 cve-icon cve-icon
History

Mon, 07 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Title Local Authenticated DoS via NULL DACL on IPC Objects in OpenVPN for Windows

Mon, 07 Sep 2026 14:15:00 +0000

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

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

Type Values Removed Values Added
Description OpenVPN 2.0.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to cause a denial of service via a NULL DACL on named IPC objects
Weaknesses CWE-412
CWE-732
References
Metrics cvssV4_0

{'score': 1.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: OpenVPN

Published:

Updated: 2026-09-07T07:40:14.456Z

Reserved: 2026-08-28T13:12:48.923Z

Link: CVE-2026-82312

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-07T08:17:13.527

Modified: 2026-09-07T08:17:13.527

Link: CVE-2026-82312

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-07T14:30:17Z

Weaknesses