{"vulnerability": "cve-2021-1590", "sightings": [{"uuid": "ad522e8a-a0a5-4d28-a8f5-1e8db33696d9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-1590", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/4232", "content": "#exploit\nCVE-2021-1588:\nA vulnerability in the MPLS Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software\nhttps://github.com/AlAIAL90/CVE-2021-1588\n]-> A vulnerability in the implementation of the system login block-for command for Cisco NX-OS Software\nhttps://github.com/AlAIAL90/CVE-2021-1590\n]-> A vulnerability in the EtherChannel port subscription logic of Cisco Nexus 9500 Series Switches\u00a0\nhttps://github.com/AlAIAL90/CVE-2021-1591", "creation_timestamp": "2021-09-05T20:30:34.000000Z"}, {"uuid": "b5f861e0-c326-425d-a3e6-4e2467d825fe", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-1590", "type": "published-proof-of-concept", "source": "https://t.me/cissp/4289", "content": "", "creation_timestamp": "2026-09-10T20:00:10.584099Z"}, {"uuid": "fddfa114-cf24-4ab2-a1a3-98393c5b3d39", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-1590", "type": "seen", "source": "https://t.me/cissp/4289", "content": "", "creation_timestamp": "2026-09-01T17:00:41.271907Z"}]}