{"id":"CVE-2021-27432","details":"OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.","modified":"2026-04-12T00:09:46.895049Z","published":"2021-05-20T16:15:07.967Z","references":[{"type":"ADVISORY","url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opcfoundation/ua-.netstandard","events":[{"introduced":"0"},{"fixed":"56a54066a19590da7f61b73b98af6a8f09b86bc2"}],"database_specific":{"cpe":"cpe:2.3:a:opcfoundation:ua_.net_standard_stack:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"1.4.365.48"}]}}],"versions":["1.03.350","1.04.353.15","1.04.354.21","1.04.354.23","1.4.355.26","1.4.356.27","1.4.357.28","1.4.358.30","1.4.359.31","1.4.360.33","1.4.361.39","1.4.362.42","1.4.363.49","1.4.365.10","1.4.365.2","1.4.365.23"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-27432.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}