https://vulnerability.circl.lu/sightings/feed 2026-05-07T13:06:23.375541+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/9eb8a54b-5d6b-4310-893f-63637378045c/export 2026-05-07T13:06:23.787940+00:00 Automation user http://vulnerability.circl.lu/user/automation {"uuid": "9eb8a54b-5d6b-4310-893f-63637378045c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21839", "type": "seen", "source": "https://t.me/cibsecurity/27503", "content": "\u203c CVE-2021-21839 \u203c\n\nMultiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-18T16:16:49.000000Z"} 2021-08-18T16:16:49+00:00 https://vulnerability.circl.lu/sighting/b0439ef8-53ef-4dc6-8046-f6d93933ca03/export 2026-05-07T13:06:23.783415+00:00 Automation user http://vulnerability.circl.lu/user/automation {"uuid": "b0439ef8-53ef-4dc6-8046-f6d93933ca03", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21839", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/4219", "content": "#exploit\nPoCs for exploiting CVE-2021-21847, \nCVE-2021-21853, CVE-2021-21845, \nCVE-2021-21846, CVE-2021-21844,\nCVE-2021-21839:\nhttps://github.com/AlAIAL90/CVE-2021-21847\nhttps://github.com/AlAIAL90/CVE-2021-21853\nhttps://github.com/AlAIAL90/CVE-2021-21845\nhttps://github.com/AlAIAL90/CVE-2021-21846\nhttps://github.com/AlAIAL90/CVE-2021-21844\nhttps://github.com/AlAIAL90/CVE-2021-21839\n// Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project", "creation_timestamp": "2024-03-29T14:38:26.000000Z"} 2024-03-29T14:38:26+00:00