CRITICAL · 9.8

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.

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
OpenvpnOpenvpn< 2.3.18
DebianDebian Linux9.0

Related Weaknesses (CWE)

References

FAQ

What is CVE-2017-12166?

CVE-2017-12166 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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.

How severe is CVE-2017-12166?

CVE-2017-12166 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2017-12166?

Check the references section above for vendor advisories and patch information. Affected products include: Openvpn Openvpn, Debian Debian Linux.