Vulnerability Database

300,445

Total vulnerabilities in the database

CVE-2017-7520

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker.

  • Published: Jun 27, 2017
  • Updated: Nov 9, 2025
  • CVE: CVE-2017-7520
  • Severity: Low
  • Exploit:

CVSS v2:

  • Severity: Low
  • Score: 4
  • AV:N/AC:H/Au:N/C:P/I:N/A:P

CWEs:

Software From Fixed in
openvpn / openvpn - 2.3.16.x
openvpn / openvpn 2.4.0 2.4.0.x
openvpn / openvpn 2.4.2 2.4.2.x
openvpn / openvpn 2.4.0-beta1 2.4.0-beta1.x
openvpn / openvpn 2.4.0-rc1 2.4.0-rc1.x
openvpn / openvpn 2.4.0-beta2 2.4.0-beta2.x
openvpn / openvpn 2.4.0-alpha2 2.4.0-alpha2.x
openvpn / openvpn 2.4.1 2.4.1.x
openvpn / openvpn 2.4.0-rc2 2.4.0-rc2.x