CVE-2022-0547

{"containers": {"cna": {"affected": [{"product": "OpenVPN", "vendor": "n/a", "versions": [{"status": "affected", "version": "version 2.1 until version 2.4.12 and 2.5.6."}]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-305", "description": "CWE-305 - Authentication Bypass by Primary Weakness", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-05-03T13:06:11.000Z", "orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e", "shortName": "OpenVPN"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements"}, {"tags": ["x_refsource_MISC"], "url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547"}, {"tags": ["x_refsource_MISC"], "url": "https://openvpn.net/community-downloads/"}, {"name": "FEDORA-2022-7d46acce7c", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/"}, {"name": "FEDORA-2022-cb4c1146dc", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/"}, {"name": "[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@openvpn.net", "ID": "CVE-2022-0547", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "OpenVPN", "version": {"version_data": [{"version_value": "version 2.1 until version 2.4.12 and 2.5.6."}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-305 - Authentication Bypass by Primary Weakness"}]}]}, "references": {"reference_data": [{"name": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements", "refsource": "MISC", "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements"}, {"name": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547", "refsource": "MISC", "url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547"}, {"name": "https://openvpn.net/community-downloads/", "refsource": "MISC", "url": "https://openvpn.net/community-downloads/"}, {"name": "FEDORA-2022-7d46acce7c", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/"}, {"name": "FEDORA-2022-cb4c1146dc", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/"}, {"name": "[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html"}]}}}, "adp": [{"title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://openvpn.net/community-downloads/"}, {"name": "FEDORA-2022-7d46acce7c", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/"}, {"name": "FEDORA-2022-cb4c1146dc", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/"}, {"name": "[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00005.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:34:30.191Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-04-23T13:27:37.639278Z", "id": "CVE-2022-0547", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T18:46:01.507Z"}}]}, "cveMetadata": {"assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e", "assignerShortName": "OpenVPN", "cveId": "CVE-2022-0547", "datePublished": "2022-03-18T18:00:20.000Z", "dateReserved": "2022-02-08T00:00:00.000Z", "dateUpdated": "2025-11-03T20:34:30.191Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.2"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://openvpn.net/community-downloads/", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/", "name": "FEDORA-2022-7d46acce7c", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/", "name": "FEDORA-2022-cb4c1146dc", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html", "name": "[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00005.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:34:30.191Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-0547", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-04-23T13:27:37.639278Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T14:34:53.181Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "OpenVPN", "versions": [{"status": "affected", "version": "version 2.1 until version 2.4.12 and 2.5.6."}]}], "references": [{"url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements", "tags": ["x_refsource_MISC"]}, {"url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547", "tags": ["x_refsource_MISC"]}, {"url": "https://openvpn.net/community-downloads/", "tags": ["x_refsource_MISC"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/", "name": "FEDORA-2022-7d46acce7c", "tags": ["vendor-advisory", "x_refsource_FEDORA"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/", "name": "FEDORA-2022-cb4c1146dc", "tags": ["vendor-advisory", "x_refsource_FEDORA"]}, {"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html", "name": "[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security update", "tags": ["mailing-list", "x_refsource_MLIST"]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-305", "description": "CWE-305 - Authentication Bypass by Primary Weakness"}]}], "providerMetadata": {"orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e", "shortName": "OpenVPN", "dateUpdated": "2022-05-03T13:06:11.000Z"}, "x_legacyV4Record": {"affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "version 2.1 until version 2.4.12 and 2.5.6."}]}, "product_name": "OpenVPN"}]}, "vendor_name": "n/a"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements", "name": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements", "refsource": "MISC"}, {"url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547", "name": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547", "refsource": "MISC"}, {"url": "https://openvpn.net/community-downloads/", "name": "https://openvpn.net/community-downloads/", "refsource": "MISC"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/", "name": "FEDORA-2022-7d46acce7c", "refsource": "FEDORA"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/", "name": "FEDORA-2022-cb4c1146dc", "refsource": "FEDORA"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html", "name": "[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security update", "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-305 - Authentication Bypass by Primary Weakness"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-0547", "STATE": "PUBLIC", "ASSIGNER": "security@openvpn.net"}}}}, "cveMetadata": {"cveId": "CVE-2022-0547", "state": "PUBLISHED", "dateUpdated": "2025-11-03T20:34:30.191Z", "dateReserved": "2022-02-08T00:00:00.000Z", "assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e", "datePublished": "2022-03-18T18:00:20.000Z", "assignerShortName": "OpenVPN"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "OpenVPN", "vendor": "n/a", "versions": [{"status": "affected", "version": "version 2.1 until version 2.4.12 and 2.5.6."}]}], "source": "security@openvpn.net"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*", "matchCriteriaId": "3DCBC37F-7869-42AE-B343-456FC9416C90", "versionEndExcluding": "2.4.12", "versionStartIncluding": "2.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*", "matchCriteriaId": "964D0D5A-F643-40FB-A051-E9DC5F859A1C", "versionEndExcluding": "2.5.6", "versionStartIncluding": "2.5.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*", "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "OpenVPN versiones 2.1 hasta v2.4.12 y versi\u00f3n v2.5.6, puede permitir una omisi\u00f3n de autenticaci\u00f3n en los complementos de autenticaci\u00f3n externa cuando m\u00e1s de uno de ellos hace uso de las respuestas de autenticaci\u00f3n diferida, lo que permite que sea concedido acceso a un usuario externo con credenciales s\u00f3lo parcialmente correctas"}], "id": "CVE-2022-0547", "lastModified": "2026-06-17T04:20:49.077", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-0547", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-04-23T13:27:37.639278Z", "version": "2.0.3"}}]}, "published": "2022-03-18T18:15:12.017", "references": [{"source": "security@openvpn.net", "tags": ["Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547"}, {"source": "security@openvpn.net", "tags": ["Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements"}, {"source": "security@openvpn.net", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html"}, {"source": "security@openvpn.net", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/"}, {"source": "security@openvpn.net", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/"}, {"source": "security@openvpn.net", "tags": ["Patch", "Vendor Advisory"], "url": "https://openvpn.net/community-downloads/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/CVE-2022-0547"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00005.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://openvpn.net/community-downloads/"}], "sourceIdentifier": "security@openvpn.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-305"}], "source": "security@openvpn.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}