{"id":"CVE-2022-29865","aliases":["EUVD-2022-6043","GHSA-fvxf-r9fw-49pc"],"status":"published","title":"Incorrect Implementation of Authentication Algorithm in OPCFoundation.NetStandard.Opc.Ua.Core","description":"OPC UA .NET Standard Stack allows a remote attacker to bypass the application authentication check via crafted fake credentials.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01649,"percentile":0.76695,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2022-06-16T16:50:05Z","modified":"2026-10-28T02:30:50Z","fixes":[{"ecosystem":"NuGet","package":"OPCFoundation.NetStandard.Opc.Ua.Core","fixed_in":["1.4.368.58"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"NuGet","package":"OPCFoundation.NetStandard.Opc.Ua.Core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.4.368.53"},{"fixed":"1.4.368.58"}]}]},{"source":"osv","ecosystem":"NuGet","package":"OPCFoundation.NetStandard.Opc.Ua.Core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.368.58"}]}],"versions":["0.0.3","0.0.6","0.0.7","0.0.8","0.0.9","0.1.0","0.1.1","0.1.2","0.1.3","0.1.5","0.1.6","0.1.7","0.1.8","0.1.9","0.2.0","0.2.1","0.2.2","0.2.3","0.2.4","1.4.363.104-preview","1.4.363.107","1.4.364.40","1.4.365-gfc341ee8c5","1.4.365.1-preview","1.4.365.10","1.4.365.2","1.4.365.23","1.4.365.48","1.4.366.31-preview","1.4.366.38","1.4.367.100","1.4.367.39","1.4.367.41","1.4.367.42","1.4.367.64-preview","1.4.367.75","1.4.367.95","1.4.368.27-preview","1.4.368.33","1.4.368.52-preview","1.4.368.53"]}],"products":[{"vendor":"opcfoundation","product":"ua_.net_standard_stack"}],"references":[{"url":"https://opcfoundation.org/security/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","web"]},{"url":"https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29865.pdf","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","web"]},{"url":"https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-fvxf-r9fw-49pc","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29865","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-fvxf-r9fw-49pc"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29865.json","tags":["advisory"]},{"url":"https://github.com/OPCFoundation/UA-.NETStandard","tags":["package"]},{"url":"https://opcfoundation.org/security","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2022-29865","description":"OPC UA .NET Standard Stack allows a remote attacker to bypass the application authentication check via crafted fake credentials.","status":"published","published":"2022-06-16T16:50:05Z","modified":"2024-08-03T06:33:42.937Z","updated_at":"2026-11-02T14:34:36.578327Z"}],"euvd":[{"id":"EUVD-2022-6043","description":"OPC UA .NET Standard Stack allows a remote attacker to bypass the application authentication check via crafted fake credentials.","status":"published","published":"2022-06-16T16:50:05Z","modified":"2024-08-03T06:33:42Z","updated_at":"2026-11-03T03:25:37.579336Z"}],"ghsa":[{"id":"GHSA-fvxf-r9fw-49pc","title":"Incorrect Implementation of Authentication Algorithm in OPCFoundation.NetStandard.Opc.Ua.Core","description":"A vulnerability was discovered in the OPC UA .NET Standard Stack that\n-  allows a malicious client or server to bypass the application authentication mechanism\n-  and allow a connection to an untrusted peer.","status":"published","published":"2022-06-17T21:44:39Z","modified":"2023-01-30T05:01:38Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:36:27.500048Z"}],"nvd":[{"id":"CVE-2022-29865","description":"OPC UA .NET Standard Stack allows a remote attacker to bypass the application authentication check via crafted fake credentials.","status":"published","published":"2022-06-16T17:15:07.863Z","modified":"2026-06-17T04:40:51.447Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:07:22.232533Z"}],"osv":[{"id":"GHSA-fvxf-r9fw-49pc","title":"Incorrect Implementation of Authentication Algorithm in OPCFoundation.NetStandard.Opc.Ua.Core","description":"A vulnerability was discovered in the OPC UA .NET Standard Stack that\n-  allows a malicious client or server to bypass the application authentication mechanism\n-  and allow a connection to an untrusted peer.","status":"published","published":"2022-06-17T21:44:39Z","modified":"2024-02-16T08:11:07.050304Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:46:46.760785Z"},{"id":"CVE-2022-29865","description":"OPC UA .NET Standard Stack allows a remote attacker to bypass the application authentication check via crafted fake credentials.","status":"published","published":"2022-06-16T16:50:05Z","modified":"2026-10-28T02:30:50.309057355Z","updated_at":"2026-11-02T15:44:25.164673Z"}]}}