{"id":"CVE-2021-45769","details":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.","modified":"2026-08-07T17:03:12.758248Z","published":"2022-01-14T20:15:15.063Z","references":[{"type":"FIX","url":"https://github.com/mz-automation/libiec61850/issues/368"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mz-automation/libiec61850","events":[{"introduced":"fcefc746fea286aeaa40d2f62240216da81c85e5"},{"last_affected":"fcefc746fea286aeaa40d2f62240216da81c85e5"}],"database_specific":{"extracted_events":[{"introduced":"1.5.0"},{"last_affected":"1.5.0"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:mz-automation:libiec61850:1.5.0:*:*:*:*:*:*:*"}}],"versions":["1.5.0","v1.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45769.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}