{"vulnerability": "cve-2021-31209", "sightings": [{"uuid": "71841536-9cec-46af-8aba-30d4797e17e4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-31209", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/4169", "content": "Pwn2Own Vancouver 2021:\nMicrosoft Exchange Server RCE\n(PoC for CVE-2021-31209)\nhttps://srcincite.io/blog/2021/08/25/pwn2own-vancouver-2021-microsoft-exchange-server-remote-code-execution.html", "creation_timestamp": "2021-08-28T13:27:01.000000Z"}, {"uuid": "7ffa3023-b72e-48f9-97d7-757f4eef4bf7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-31209", "type": "published-proof-of-concept", "source": "https://t.me/cissp/4162", "content": "", "creation_timestamp": "2026-09-10T22:00:04.516246Z"}, {"uuid": "3d2f7068-685b-4638-8f5d-8f58e037b9a9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-31209", "type": "seen", "source": "https://t.me/hacking_Attack/8312", "content": "", "creation_timestamp": "2026-09-01T20:02:42.667469Z"}, {"uuid": "6afb9735-61f3-48c5-9d52-a14e4eef9be1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-31209", "type": "seen", "source": "https://t.me/cissp/4162", "content": "", "creation_timestamp": "2026-09-01T17:00:41.956639Z"}]}