CVE-2020-15078

Description

OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.32%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory openvpn.net
Affected: n/a OpenVPN
Published at:
Updated at:

References

Link Tags
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/ vendor advisory
https://community.openvpn.net/openvpn/wiki/CVE-2020-15078 patch vendor advisory
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements broken link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/ vendor advisory
https://security.gentoo.org/glsa/202105-25 third party advisory vendor advisory
https://usn.ubuntu.com/usn/usn-4933-1 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-15078?
CVE-2020-15078 has been scored as a high severity vulnerability.
How to fix CVE-2020-15078?
To fix CVE-2020-15078, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15078 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-15078 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15078?
CVE-2020-15078 affects n/a OpenVPN.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.