---
id: CVE-2026-84471
title: The fix for CVE-2026-12996 was incomplete
summary: >-
  The fix for CVE-2026-12996 was incomplete. A use-after-free in OpenVPN 2.6.0
  through 2.6.22 and 2.7_alpha1 through 2.7.7 allows remote authenticated peers
  to potentially cause a denial of service or leak memory via crafted packets
  during…
severity: high
cvss: 7.2
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-416
vendor: OpenVPN
product: OpenVPN
affected:
  - OpenVPN >= 2.6.0 <= 2.6.22
  - OpenVPN >= 2.7_alpha1 <= 2.7.7
published: '2026-10-14'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T16:21:51.633'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84471'
references:
  - url: 'https://community.openvpn.net/Security%20Announcements/CVE-2026-84471'
    label: security@openvpn.net
tags:
  - nvd
  - cve.org
epss: 0.00408
epssPercentile: 0.34884
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T15:17:47.022957Z'
cvssSource: cna
ingestedAt: '2026-10-14T15:36:14.032Z'
---

## Overview

The fix for CVE-2026-12996 was incomplete. A use-after-free in OpenVPN 2.6.0 through 2.6.22 and 2.7_alpha1 through 2.7.7 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry.

## Remediation

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