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Vulnerability DatabaseCVE-2024-5594

CVE-2024-5594: 
OpenVPN vulnerability analysis and mitigation

Overview

OpenVPN versions before 2.6.11 contain a critical security vulnerability (CVE-2024-5594) that fails to properly sanitize PUSH_REPLY messages. The vulnerability was discovered and patched in June 2024, with a CVSS score of 9.1, indicating its critical severity (SecurityOnline, NVD).

Technical details

The vulnerability is characterized by improper validation of PUSH_REPLY messages, which allows attackers to inject unexpected arbitrary data into third-party executables or plugins. The vulnerability has been assigned a CVSS v3.1 base score of 9.1 (Critical) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N, indicating network accessibility, low attack complexity, and no required privileges or user interaction (NVD).

Impact

The vulnerability could allow malicious OpenVPN peers to execute code or cause denial-of-service conditions through the injection of arbitrary data into third-party executables or plugins (SecurityOnline).

Mitigation and workarounds

The vulnerability has been patched in OpenVPN version 2.6.11, released on June 21, 2024. Users are strongly encouraged to update to this version or later to protect against potential attacks (SecurityOnline, Mail-Archive).

Additional resources

Source: This report was generated using AI

Related OpenVPN vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-12106CRITICAL9.1
  • OpenVPNOpenVPN
  • cpe:2.3:a:openvpn:openvpn
NoNoDec 01, 2025
CVE-2025-10680HIGH8.8
  • OpenVPNOpenVPN
  • cpe:2.3:a:openvpn:openvpn
NoNoOct 24, 2025
CVE-2024-4877HIGH8.8
  • OpenVPNOpenVPN
  • openvpn
NoYesApr 03, 2025
CVE-2025-13086MEDIUM4.6
  • OpenVPNOpenVPN
  • openvpn
NoYesDec 03, 2025
CVE-2025-13751LOW1.3
  • OpenVPNOpenVPN
  • cpe:2.3:a:openvpn:openvpn
NoNoDec 03, 2025

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