{"id":"CVE-2024-33862","aliases":["EUVD-2024-2248","GHSA-4q2p-hwmr-qcxc"],"status":"published","title":"OPCFoundation.NetStandard.Opc.Ua.Core buffer-management vulnerability","description":"A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00557,"percentile":0.46735,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2024-07-05T00:00:00Z","modified":"2026-06-17T07:32:27Z","fixes":[{"ecosystem":"NuGet","package":"OPCFoundation.NetStandard.Opc.Ua.Core","fixed_in":["1.5.374.54"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"NuGet","package":"OPCFoundation.NetStandard.Opc.Ua.Core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.374.54"}]}]},{"source":"osv","ecosystem":"NuGet","package":"OPCFoundation.NetStandard.Opc.Ua.Core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.374.54"}]}],"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","1.4.368.58","1.4.369.30","1.4.370.1","1.4.370.12","1.4.370.9","1.4.371.41","1.4.371.50","1.4.371.60","1.4.371.86","1.4.371.91","1.4.371.96","1.4.372.106","1.4.372.107","1.4.372.112-preview","1.4.372.116-preview","1.4.372.38-preview","1.4.372.46-preview","1.4.372.56","1.4.372.67-preview","1.4.372.76","1.4.372.91-preview","1.5.368.2-rc0","1.5.368.3-rc0","1.5.368.5-beta","1.5.371.3-beta","1.5.372.1-rc","1.5.372.110-rc2","1.5.372.113","1.5.373.121","1.5.373.3-preview","1.5.374.26-preview","1.5.374.27","1.5.374.33-preview","1.5.374.36","1.5.374.50-preview"]}],"products":[{"vendor":"opcfoundation","product":"ua-.netstandard"}],"references":[{"url":"https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-33862.pdf","tags":["x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-33862","tags":["advisory"]},{"url":"https://github.com/OPCFoundation/UA-.NETStandard/commit/52d4492ccc928f128e7a38857fdf58d94e1e652b","tags":["web"]},{"url":"https://github.com/OPCFoundation/UA-.NETStandard/releases/tag/1.5.374.54","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4q2p-hwmr-qcxc"},{"url":"https://github.com/OPCFoundation/UA-.NETStandard","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-33862","description":"A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.","status":"published","published":"2024-07-05T00:00:00Z","modified":"2024-08-02T02:42:59.324Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:34:21.404483Z"}],"euvd":[{"id":"EUVD-2024-2248","description":"A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.","status":"published","published":"2024-07-05T00:00:00Z","modified":"2024-08-02T02:42:59Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T03:50:21.347751Z"}],"ghsa":[{"id":"GHSA-4q2p-hwmr-qcxc","title":"OPCFoundation.NetStandard.Opc.Ua.Core buffer-management vulnerability","description":"A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.5.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.","status":"published","published":"2024-07-06T00:31:06Z","modified":"2024-08-07T05:01:42Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:37:58.427757Z"}],"nvd":[{"id":"CVE-2024-33862","description":"A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.","status":"published","published":"2024-07-05T23:15:10.05Z","modified":"2026-06-17T07:32:27.18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:10:10.545705Z"}],"osv":[{"id":"GHSA-4q2p-hwmr-qcxc","title":"OPCFoundation.NetStandard.Opc.Ua.Core buffer-management vulnerability","description":"A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.5.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.","status":"published","published":"2024-07-06T00:31:06Z","modified":"2024-07-08T14:59:37.196733Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:46:37.148947Z"}]}}