{"vulnerability": "CVE-2021-3287", "sightings": [{"uuid": "178be041-f8ce-45aa-b30f-7c59ffddcce0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-3287", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-06T03:13:45.000000Z"}, {"uuid": "cd3f3457-d7d4-43f9-93bb-4854d626467e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-3287", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-23T04:10:37.000000Z"}, {"uuid": "4f5dceac-fa53-4afa-b897-174c76952e55", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-3287", "type": "seen", "source": "https://bsky.app/profile/beikokucyber.bsky.social/post/3m3xrj3tqz22n", "content": "", "creation_timestamp": "2025-10-24T21:02:32.570032Z"}, {"uuid": "bc882970-f08a-4a2e-b2ea-e3a21d450f45", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-3287", "type": "confirmed", "source": "https://github.com/projectdiscovery/nuclei-templates/tree/main/http/cves/2021/CVE-2021-3287.yaml", "content": "", "creation_timestamp": "2025-10-21T06:53:08.000000Z"}, {"uuid": "b6c66c59-50bc-4488-9aa2-a505da68daaa", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-3287", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/opmanager_sumpdu_deserialization.rb", "content": "", "creation_timestamp": "2021-09-20T17:34:16.000000Z"}, {"uuid": "491067b0-a8a2-4a8d-8812-d57fc0a3e70d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-3287", "type": "seen", "source": "https://t.me/arpsyndicate/2532", "content": "#ExploitObserverAlert\n\nCVE-2021-3287\n\nDESCRIPTION: Exploit Observer has 6 entries related to CVE-2021-3287. Zoho ManageEngine OpManager before 12.5.329 allows unauthenticated Remote Code Execution due to a general bypass in the deserialization class.\n\nFIRST-EPSS: 0.373730000\nNVD-IS: 5.9\nNVD-ES: 3.9", "creation_timestamp": "2024-01-06T12:19:00.000000Z"}, {"uuid": "9098c6f2-7a3f-49bd-92ca-336cb146c95f", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-3287", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/2834adf0-e450-4acb-9059-aed2039cbb0b", "content": "", "creation_timestamp": "2026-06-23T14:06:19.031755Z"}, {"uuid": "79876158-3606-4831-a925-f72b6c2170f8", "vulnerability_lookup_origin": "c8fb6bf1-f81f-4cb8-95b1-eadbb3b54ee8", "author": "af0120d0-3dac-4a6a-974b-a9f33d2a9846", "vulnerability": "CVE-2021-3287", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/851765da-da2b-4de7-8f8e-b0a59d2ba0b5", "content": "", "creation_timestamp": "2026-06-30T12:19:14.008542Z"}]}