{"vulnerability": "CVE-2021-21867", "sightings": [{"uuid": "447218a1-efa7-49d5-b6a9-7afc60e8b4b6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2021-21867", "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": "d97ec236-f11a-473e-ba2c-071ea1cc8f64", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21867", "type": "seen", "source": "https://t.me/cibsecurity/27530", "content": "\u203c CVE-2021-21867 \u203c\n\nA unsafe deserialization vulnerability exists in the ObjectManager.plugin ObjectStream.ProfileByteArray 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": "2021-08-18T18:17:07.000000Z"}]}