{"metadata": {"vulnerability": "CVE-2021-21853", "count": 21, "kinds": {"milestone": 5, "sighting": 4, "kev": 0, "other": 12}}, "data": [{"timestamp": "2021-01-04T00:00:00Z", "date_only": false, "value": "2021-01-04T00:00:00.000Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2021-21853", "field": "cveMetadata.dateReserved"}, {"timestamp": "2021-08-18T00:00:00Z", "date_only": true, "value": "2021-08-18", "kind": "other", "label": "Submit Time", "source": "cnvd \u00b7 CNVD-2021-101189", "record": "CNVD-2021-101189", "field": "submitTime"}, {"timestamp": "2021-08-18T12:47:47Z", "date_only": false, "value": "2021-08-18T12:47:47.000Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2021-21853", "field": "cveMetadata.datePublished"}, {"timestamp": "2021-08-18T13:15:00Z", "date_only": false, "value": "2021-08-18T13:15:00Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-28W3-F2RH-76X2", "record": "GHSA-28W3-F2RH-76X2", "field": "database_specific.nvd_published_at"}, {"timestamp": "2021-08-18T13:15:00Z", "date_only": false, "value": "2021-08-18T13:15:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2021-21853", "record": "UBUNTU-CVE-2021-21853", "field": "published"}, {"timestamp": "2021-08-18T13:15:00Z", "date_only": false, "value": "2021-08-18T13:15Z", "kind": "other", "label": "Published Date", "source": "gsd \u00b7 GSD-2021-21853", "record": "GSD-2021-21853", "field": "namespaces.nvd.nist.gov.publishedDate"}, {"timestamp": "2021-08-18T13:15:07.917Z", "date_only": false, "value": "2021-08-18T13:15:07.917", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-21853", "record": "FKIE_CVE-2021-21853", "field": "published"}, {"timestamp": "2021-08-18T16:17:00Z", "date_only": false, "value": "2021-08-18T16:17:00.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/cibsecurity/27511", "record": "CVE-2021-21853", "field": "creation_timestamp", "uuid": "319fc603-c418-4922-a4a0-162fd97ae67a", "content": "\u203c CVE-2021-21853 \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 addition 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\".", "url": "https://t.me/cibsecurity/27511"}, {"timestamp": "2021-09-01T10:06:17Z", "date_only": false, "value": "2021-09-01T10:06:17.000Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / talos", "record": "CVE-2021-21853", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2021-12-21T00:00:00Z", "date_only": true, "value": "2021-12-21", "kind": "other", "label": "Open Time", "source": "cnvd \u00b7 CNVD-2021-101189", "record": "CNVD-2021-101189", "field": "openTime"}, {"timestamp": "2022-05-24T19:11:33Z", "date_only": false, "value": "2022-05-24T19:11:33Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-28W3-F2RH-76X2", "record": "GHSA-28W3-F2RH-76X2", "field": "published"}, {"timestamp": "2022-05-24T19:11:33Z", "date_only": false, "value": "2022-05-24T19:11:33Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-28W3-F2RH-76X2", "record": "GHSA-28W3-F2RH-76X2", "field": "modified"}, {"timestamp": "2022-07-29T14:10:00Z", "date_only": false, "value": "2022-07-29T14:10Z", "kind": "other", "label": "Last Modified Date", "source": "gsd \u00b7 GSD-2021-21853", "record": "GSD-2021-21853", "field": "namespaces.nvd.nist.gov.lastModifiedDate"}, {"timestamp": "2023-12-13T01:23:11.003Z", "date_only": false, "value": "2023-12-13T01:23:11.003261Z", "kind": "other", "label": "Updated", "source": "gsd \u00b7 GSD-2021-21853", "record": "GSD-2021-21853", "field": "gsd.osvSchema.modified"}, {"timestamp": "2024-03-29T14:38:26Z", "date_only": false, "value": "2024-03-29T14:38:26.000000Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/CyberSecurityTechnologies/4219", "record": "CVE-2021-21853", "field": "creation_timestamp", "uuid": "dd237602-1b37-4ef0-83f8-2ea83217e881", "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", "url": "https://t.me/CyberSecurityTechnologies/4219"}, {"timestamp": "2024-08-03T18:23:29.566Z", "date_only": false, "value": "2024-08-03T18:23:29.566Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2021-21853", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2024-08-03T18:23:29.566Z", "date_only": false, "value": "2024-08-03T18:23:29.566Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CVE", "record": "CVE-2021-21853", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-04-22T07:39:55Z", "date_only": false, "value": "2026-04-22T07:39:55Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2021-21853", "record": "UBUNTU-CVE-2021-21853", "field": "modified"}, {"timestamp": "2026-06-17T03:36:14.297Z", "date_only": false, "value": "2026-06-17T03:36:14.297", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-21853", "record": "FKIE_CVE-2021-21853", "field": "lastModified"}, {"timestamp": "2026-09-01T17:00:41.358Z", "date_only": false, "value": "2026-09-01T17:00:41.358711Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/cissp/4288", "record": "CVE-2021-21853", "field": "creation_timestamp", "uuid": "fde50d1e-7d4c-498b-92c0-165d9a3e3709", "url": "https://t.me/cissp/4288"}, {"timestamp": "2026-09-10T20:00:10.076Z", "date_only": false, "value": "2026-09-10T20:00:10.076991Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/cissp/4288", "record": "CVE-2021-21853", "field": "creation_timestamp", "uuid": "ad479d68-f8c2-4d69-b9e9-93af73cd866e", "url": "https://t.me/cissp/4288"}]}