{"vulnerability": "cve-2021-28903", "sightings": [{"uuid": "8a65e146-1cec-44f3-a420-c93c0f6e7725", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-28903", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/3916", "content": "#exploit\nPoC for exploiting CVE-2021-28903:\nA stack overflow in libyang <= v1.0.225 can cause a denial of service through function lyxml_parse_mem()\nhttps://github.com/AlAIAL90/CVE-2021-28903", "creation_timestamp": "2021-07-25T18:31:14.000000Z"}, {"uuid": "bc2a5904-908f-4f85-be17-be5d1980f452", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-28903", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3906", "content": "", "creation_timestamp": "2026-09-11T00:00:08.182577Z"}, {"uuid": "51341014-2770-4c77-a4fb-1353eb920b26", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-28903", "type": "seen", "source": "https://t.me/cissp/3906", "content": "", "creation_timestamp": "2026-09-01T17:00:45.368459Z"}]}