Critical severity9.8NVD Advisory· Published Mar 18, 2022· Updated Jun 17, 2026
CVE-2022-0547
CVE-2022-0547
Description
OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
45cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- osv-coords39 versionspkg:rpm/opensuse/openvpn&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/openvpn&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/openvpn&distro=openSUSE%20Tumbleweedpkg:rpm/suse/openvpn&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/openvpn&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/openvpn&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP2pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/openvpn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/openvpn&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/openvpn&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/openvpn&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/openvpn&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/openvpn&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openvpn&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/openvpn&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openvpn-openssl1&distro=SUSE%20Linux%20Enterprise%20Server%2011-SECURITY
< 2.4.3-150000.5.10.1+ 38 more
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.5.6-150400.3.3.1
- (no CPE)range: < 2.5.6-1.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.5.6-150400.3.3.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.4.3-150000.5.10.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.8-16.29.1
- (no CPE)range: < 2.3.2-0.10.12.1
Patches
Vulnerability mechanics
References
7- openvpn.net/community-downloads/nvdPatchVendor Advisory
- community.openvpn.net/openvpn/wiki/CVE-2022-0547nvdVendor Advisory
- community.openvpn.net/openvpn/wiki/SecurityAnnouncementsnvdVendor Advisory
- lists.debian.org/debian-lts-announce/2022/05/msg00002.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/03/msg00005.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/nvd
News mentions
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