{"vulnerability": "CVE-2021-2300", "sightings": [{"uuid": "d241816b-5abd-4a55-b28b-993f1360233a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-23008", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/3261", "content": "#Threat_Research\n1. KDC Spoofing Vulnerability in F5 Big-IP (CVE-2021-23008)\nhttps://www.silverfort.com/blog/silverfort-researchers-discover-kdc-spoofing-vulnerability-in-f5-big-ip-cve-2021-23008\n2. UNC2447 SOMBRAT/FIVEHANDS Ransomware:\nA Sophisticated Financial Threat\nhttps://www.fireeye.com/blog/threat-research/2021/04/unc2447-sombrat-and-fivehands-ransomware-sophisticated-financial-threat.html", "creation_timestamp": "2021-05-01T12:41:31.000000Z"}, {"uuid": "a411da63-009f-4713-8034-c6924a9d53f1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23008", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3085", "content": "", "creation_timestamp": "2026-09-11T08:00:08.262106Z"}, {"uuid": "f293705a-601f-4970-a244-8f9db925c83a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23008", "type": "seen", "source": "https://t.me/hacking_Attack/6936", "content": "", "creation_timestamp": "2026-09-01T20:02:44.829225Z"}, {"uuid": "556e0f16-312a-45db-bd44-c081497a6fb7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23008", "type": "seen", "source": "https://t.me/cissp/3085", "content": "", "creation_timestamp": "2026-09-01T17:00:52.339614Z"}]}