{"id":"CVE-2021-42577","aliases":["EUVD-2021-29542","GHSA-fp56-3jcq-pm9w"],"status":"published","title":"An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort...","description":"An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00958,"percentile":0.61906,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2022-03-11T22:09:25Z","modified":"2026-06-17T04:09:51Z","products":[{"vendor":"softing","product":"datafeed_opc_suite"},{"vendor":"softing","product":"opc_ua_c\\+\\+_software_development_kit"},{"vendor":"softing","product":"secure_integration_server"}],"references":[{"url":"https://softing.com","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-42577.pdf","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42577"},{"url":"https://github.com/advisories/GHSA-fp56-3jcq-pm9w"}],"sources":{"cve":[{"id":"CVE-2021-42577","description":"An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.","status":"published","published":"2022-03-11T22:09:25Z","modified":"2024-08-04T03:38:49.37Z","updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29542","description":"An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.","status":"published","published":"2022-03-11T22:09:25Z","modified":"2024-08-04T03:38:49Z","updated_at":"2026-11-03T03:24:15.755984Z"}],"ghsa":[{"id":"GHSA-fp56-3jcq-pm9w","title":"An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort...","description":"An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.","status":"published","published":"2022-03-13T00:00:55Z","modified":"2023-01-27T05:00:41Z","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-476"],"updated_at":"2026-11-02T14:41:43.766328Z"}],"nvd":[{"id":"CVE-2021-42577","description":"An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.","status":"published","published":"2022-03-11T23:15:09.467Z","modified":"2026-06-17T04:09:51.407Z","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":"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-476"],"updated_at":"2026-11-02T14:07:05.198719Z"}]}}