{"id":"CVE-2022-29863","aliases":["GHSA-r7pq-3x6p-7jcm"],"url":"https://o3.security/vulnerability/CVE-2022-29863","summary":"Memory Allocation with Excessive Size Value in OPCFoundation.NetStandard.Opc.Ua.Core","details":"A vulnerability was discovered in the OPC UA .NET Standard Stack that allows a malicious client to cause a server to trigger an out of memory exception with a carefully crafted message.","published":"2022-06-16T17:09:49Z","modified":"2026-08-12T03:51:15.023324194Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"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-2022-29863.pdf"},{"type":"WEB","url":"https://opcfoundation.org/security/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29863.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29863"},{"type":"WEB","url":"https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-r7pq-3x6p-7jcm"},{"type":"PACKAGE","url":"https://github.com/OPCFoundation/UA-.NETStandard"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:15.023324194Z"}}