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CVE-2017-7478

HighPublished

OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is...

Published: May 15, 2017
Updated: Aug 5, 2024
Assigning CNA: redhat
Evidence observed: May 11, 2017

Primary CVSS

7.5/ 10High

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS probability estimate

11.6%

Moderate · next 30 days

Percentile: 95.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.

Sources

OpenVPN 2.4.0 - Denial of ServiceExploit
QuarksLab · multiple · May 11, 2017

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