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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | OpenVPN | 2.5.1 and earlier versions |
References
- https://community.openvpn.net/openvpn/wiki/CVE-2020-15078Patch, Vendor Advisory
- https://community.openvpn.net/openvpn/wiki/SecurityAnnouncementsBroken Link
- https://lists.debian.org/debian-lts-announce/2022/05/msg00002.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/
- https://security.gentoo.org/glsa/202105-25Third Party Advisory
- https://usn.ubuntu.com/usn/usn-4933-1Third Party Advisory
- https://community.openvpn.net/openvpn/wiki/CVE-2020-15078Patch, Vendor Advisory
- https://community.openvpn.net/openvpn/wiki/SecurityAnnouncementsBroken Link
- https://lists.debian.org/debian-lts-announce/2022/05/msg00002.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/
- https://security.gentoo.org/glsa/202105-25Third Party Advisory
- https://usn.ubuntu.com/usn/usn-4933-1Third Party Advisory
Timeline
- Published
- Apr 26, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified