Vulnerability Database

300,445

Total vulnerabilities in the database

CVE-2017-12166

OpenVPN versions before 2.3.3 and 2.4.x before 2.4.4 are vulnerable to a buffer overflow vulnerability when key-method 1 is used, possibly resulting in code execution.

  • Published: Oct 4, 2017
  • Updated: Nov 9, 2025
  • CVE: CVE-2017-12166
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.8
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:M/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
openvpn / openvpn 2.4.0 2.4.4
openvpn / openvpn - 2.3.18
debian / debian_linux 9.0 9.0.x