{"vulnerability": "cve-2021-28903", "sightings": [{"uuid": "8a65e146-1cec-44f3-a420-c93c0f6e7725", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "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": "51341014-2770-4c77-a4fb-1353eb920b26", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-28903", "type": "seen", "source": "https://t.me/cissp/3906", "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\n\nTryhackme: Android Hacking 101 Walkthrough: \nPart 1: https://hacklido.com/blog/264-tryhackme-android-hacking-101-walkthrough-part-1-of-2\nPart 2: https://hacklido.com/blog/266-tryhackme-android-hacking-101-walkthrough-part-2-of-2\n\nBlueTeam Techniques\n1. Cobalt Strike Hunting - simple PCAP and Beacon Analysis\nhttps://michaelkoczwara.medium.com/cobalt-strike-hunting-simple-pcap-and-beacon-analysis-f51c36ce6811\n2. Walkthrough of DFIR Madness PCAP\nhttps://www.netresec.com/?page=Blog&month=2021-07&post=Walkthrough-of-DFIR-Madness-PCAP\n\nRed Team Tactics\n1. Bash script will help to hack remote hosts\nhttps://github.com/FabioDefilippo/linuxallremote\n2. JMX enumeration and attacking tool\nhttps://github.com/qtc-de/beanshooter", "creation_timestamp": "2026-09-01T17:00:45.368459Z"}, {"uuid": "0963aeb3-b9b7-4a22-a10f-db790e266411", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-28903", "type": "seen", "source": "https://t.me/cissp/3906", "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\n\nTryhackme: Android Hacking 101 Walkthrough: \nPart 1: https://hacklido.com/blog/264-tryhackme-android-hacking-101-walkthrough-part-1-of-2\nPart 2: https://hacklido.com/blog/266-tryhackme-android-hacking-101-walkthrough-part-2-of-2\n\nBlueTeam Techniques\n1. Cobalt Strike Hunting - simple PCAP and Beacon Analysis\nhttps://michaelkoczwara.medium.com/cobalt-strike-hunting-simple-pcap-and-beacon-analysis-f51c36ce6811\n2. Walkthrough of DFIR Madness PCAP\nhttps://www.netresec.com/?page=Blog&month=2021-07&post=Walkthrough-of-DFIR-Madness-PCAP\n\nRed Team Tactics\n1. Bash script will help to hack remote hosts\nhttps://github.com/FabioDefilippo/linuxallremote\n2. JMX enumeration and attacking tool\nhttps://github.com/qtc-de/beanshooter", "creation_timestamp": "2026-09-02T01:04:32.104086Z"}, {"uuid": "bc2a5904-908f-4f85-be17-be5d1980f452", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-28903", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3906", "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\n\nTryhackme: Android Hacking 101 Walkthrough: \nPart 1: https://hacklido.com/blog/264-tryhackme-android-hacking-101-walkthrough-part-1-of-2\nPart 2: https://hacklido.com/blog/266-tryhackme-android-hacking-101-walkthrough-part-2-of-2\n\nBlueTeam Techniques\n1. Cobalt Strike Hunting - simple PCAP and Beacon Analysis\nhttps://michaelkoczwara.medium.com/cobalt-strike-hunting-simple-pcap-and-beacon-analysis-f51c36ce6811\n2. Walkthrough of DFIR Madness PCAP\nhttps://www.netresec.com/?page=Blog&month=2021-07&post=Walkthrough-of-DFIR-Madness-PCAP\n\nRed Team Tactics\n1. Bash script will help to hack remote hosts\nhttps://github.com/FabioDefilippo/linuxallremote\n2. JMX enumeration and attacking tool\nhttps://github.com/qtc-de/beanshooter", "creation_timestamp": "2026-09-11T00:00:08.182577Z"}]}