OpenVPN

8 known vulnerabilities in OpenVPN, with patch priority, exploit likelihood and the news covering them.

Latest vulnerabilities

  • CVE-2026-84732 CVSS 8.7 high Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service…
  • CVE-2026-84256 CVSS 7.7 high 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…
  • CVE-2026-84226 CVSS 8.5 high OpenVPN version 2.5.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to perform a binary planting…
  • CVE-2026-82312 CVSS 1.8 low 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…
  • CVE-2026-81830 CVSS 5.6 medium The Windows interactive service in OpenVPN 2.4.0 through 2.6.22 allows local authenticated users to bypass the trusted configuration…
  • CVE-2026-81738 CVSS 2.3 low OpenVPN 2.5.0 through 2.7.6 on Windows using the tap-windows6 driver allows attackers to trigger an out-of-bounds write via crafted…
  • CVE-2026-78221 CVSS 5.9 medium An incorrect buffer size calculation in the Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated…
  • CVE-2026-78043 CVSS 5.6 medium The Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration…