{"id":"CVE-2022-29865","aliases":["GHSA-fvxf-r9fw-49pc"],"url":"https://o3.security/vulnerability/CVE-2022-29865","summary":"Incorrect Implementation of Authentication Algorithm in OPCFoundation.NetStandard.Opc.Ua.Core","details":"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.","published":"2022-06-16T16:50:05Z","modified":"2026-08-12T03:51:08.280117166Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"OPCFoundation.NetStandard.Opc.Ua.Core","fixedVersion":"1.4.368.58"}],"fix":null,"references":[{"type":"WEB","url":"https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29865.pdf"},{"type":"WEB","url":"https://opcfoundation.org/security/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29865.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29865"},{"type":"WEB","url":"https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-fvxf-r9fw-49pc"},{"type":"PACKAGE","url":"https://github.com/OPCFoundation/UA-.NETStandard"},{"type":"WEB","url":"https://opcfoundation.org/security"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:08.280117166Z"}}