---
id: CVE-2026-84790
title: >-
  OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to
  impersonate others via a crafted certificate subject field
summary: >-
  OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to
  impersonate others via a crafted certificate subject field
severity: high
cwe:
  - CWE-158
  - CWE-290
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T22:18:58.937'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84790'
references:
  - url: 'https://community.openvpn.net/Security%20Announcements/CVE-2026-84790'
    label: security@openvpn.net
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-13T23:03:54.751Z'
vendor: OpenVPN
product: OpenVPN
affected:
  - OpenVPN >= 2.7_alpha1 <= 2.7.7
cvss: 7.6
cvssVector: 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
epss: 0.00146
epssPercentile: 0.03817
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-18T13:38:57.486997Z'
---

## Overview

OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to impersonate others via a crafted certificate subject field

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.