{"vulnerability": "CVE-2021-21864", "sightings": [{"uuid": "adca4e25-11bb-41df-bd4c-24194718e135", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2021-21864", "type": "seen", "source": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-076-01", "content": "", "creation_timestamp": "2026-03-17T12:00:00.000000Z"}, {"uuid": "a5451118-95cc-4807-a75f-73dc9f2ec52b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21864", "type": "seen", "source": "https://t.me/cibsecurity/26714", "content": "\u203c CVE-2021-21864 \u203c\n\nA unsafe deserialization vulnerability exists in the ComponentModel ComponentManager.StartupCultureSettings functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-03T00:28:03.000000Z"}]}