Out-of-bounds Write Affecting openvpn package, versions <2.4.4-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
3.63% (89th percentile)

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  • Snyk IDSNYK-ECHOLATEST-OPENVPN-18860391
  • published16 Aug 2026
  • disclosed4 Oct 2017

Introduced: 4 Oct 2017

CVE-2017-12166  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest openvpn to version 2.4.4-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openvpn package and not the openvpn package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1