CVE-2017-12166

9.8 CRITICAL

Published: October 04, 2017 Modified: May 13, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.securityfocus.com/bid/101153

Source: secalert@redhat.com

Third Party Advisory VDB Entry URL Repurposed

http://www.securitytracker.com/id/1039470

Source: secalert@redhat.com

Third Party Advisory VDB Entry URL Repurposed

https://community.openvpn.net/openvpn/wiki/CVE-2017-12166

Source: secalert@redhat.com

Patch Vendor Advisory

https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html

Source: secalert@redhat.com

Mailing List Third Party Advisory

http://www.securityfocus.com/bid/101153

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory VDB Entry URL Repurposed

http://www.securitytracker.com/id/1039470

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory VDB Entry URL Repurposed

https://community.openvpn.net/openvpn/wiki/CVE-2017-12166

Source: af854a3a-2127-422b-91ae-364da2661108

Patch Vendor Advisory

https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Third Party Advisory

8 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

3.6%

88th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-787

Affected Vendors

debian openvpn

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