{"id":"CVE-2021-32994","aliases":["EUVD-2021-19715","GHSA-f933-7c3x-46v4"],"status":"published","title":"Softing OPC-UA C++ SDK Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.","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":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01694,"percentile":0.77467,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2022-04-04T19:45:58Z","modified":"2026-06-17T03:53:58Z","products":[{"vendor":"softing","product":"opc ua c++ sdk (software development kit)"},{"vendor":"softing","product":"opc_ua_c\\+\\+_software_development_kit"}],"references":[{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-168-02","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32994"},{"url":"https://github.com/advisories/GHSA-f933-7c3x-46v4"}],"sources":{"cve":[{"id":"CVE-2021-32994","title":"Softing OPC-UA C++ SDK Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.","status":"published","published":"2022-04-04T19:45:58Z","modified":"2025-04-16T16:31:19.514Z","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":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:33:07.014772Z"}],"euvd":[{"id":"EUVD-2021-19715","description":"Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.","status":"published","published":"2022-04-04T19:45:58Z","modified":"2025-04-16T16:31:19Z","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":"2026-11-02T20:52:23.922531Z"}],"ghsa":[{"id":"GHSA-f933-7c3x-46v4","title":"Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library...","description":"Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.","status":"published","published":"2022-04-05T00:00:22Z","modified":"2023-01-27T05:01:20Z","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"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:41:52.138061Z"}],"nvd":[{"id":"CVE-2021-32994","description":"Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.","status":"published","published":"2022-04-04T20:15:09.26Z","modified":"2026-06-17T03:53:58.287Z","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"},{"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":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:07:05.581807Z"}]}}