{"vulnerability": "cve-2021-27077", "sightings": [{"uuid": "3c79c47c-abd0-4b52-b48c-4a9c0dd21513", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-27077", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/3945", "content": "#Threat_Research\n1. Zimbra 8.8.15 - Webmail Compromise via Email\nhttps://blog.sonarsource.com/zimbra-webmail-compromise-via-email\n2. CVE-2021-27077:\nSelecting Bitmaps Into Mismatched Device Contexts\nhttps://www.zerodayinitiative.com/blog/2021/7/26/cve-2021-27077-selecting-bitmaps-into-mismatched-device-contexts", "creation_timestamp": "2021-07-29T12:10:39.000000Z"}, {"uuid": "d17eadf6-45ff-40d8-9a7b-f475df9bc9c8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27077", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3920", "content": "", "creation_timestamp": "2026-09-11T00:00:08.845791Z"}, {"uuid": "b14e701e-e829-4cc1-b7e6-d74b446ebc40", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-27077", "type": "seen", "source": "https://t.me/cissp/3920", "content": "", "creation_timestamp": "2026-09-01T17:00:44.942373Z"}]}