{"metadata": {"vulnerability": "CVE-2021-22556", "count": 18, "kinds": {"milestone": 4, "sighting": 2, "kev": 0, "other": 12}}, "data": [{"timestamp": "2021-01-05T00:00:00Z", "date_only": false, "value": "2021-01-05T00:00:00.000Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2021-22556", "field": "cveMetadata.dateReserved"}, {"timestamp": "2022-05-03T15:50:11Z", "date_only": false, "value": "2022-05-03T15:50:11.000Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2021-22556", "field": "cveMetadata.datePublished"}, {"timestamp": "2022-05-03T15:50:11Z", "date_only": false, "value": "2022-05-03T15:50:11.000Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Google", "record": "CVE-2021-22556", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2022-05-03T16:15:00Z", "date_only": false, "value": "2022-05-03T16:15:00Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-CGFP-G9XR-GJ33", "record": "GHSA-CGFP-G9XR-GJ33", "field": "database_specific.nvd_published_at"}, {"timestamp": "2022-05-03T16:15:00Z", "date_only": false, "value": "2022-05-03T16:15Z", "kind": "other", "label": "Published Date", "source": "gsd \u00b7 GSD-2021-22556", "record": "GSD-2021-22556", "field": "namespaces.nvd.nist.gov.publishedDate"}, {"timestamp": "2022-05-03T16:15:18.627Z", "date_only": false, "value": "2022-05-03T16:15:18.627", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-22556", "record": "FKIE_CVE-2021-22556", "field": "published"}, {"timestamp": "2022-05-03T20:33:57Z", "date_only": false, "value": "2022-05-03T20:33:57.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/cibsecurity/41828", "record": "CVE-2021-22556", "field": "creation_timestamp", "uuid": "5c8e7875-e877-4f84-ad2b-3964b8d1b60a", "content": "\u203c CVE-2021-22556 \u203c\n\nThe Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don\u00e2\u20ac\u2122t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "url": "https://t.me/cibsecurity/41828"}, {"timestamp": "2022-05-04T00:00:24Z", "date_only": false, "value": "2022-05-04T00:00:24Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-CGFP-G9XR-GJ33", "record": "GHSA-CGFP-G9XR-GJ33", "field": "published"}, {"timestamp": "2022-05-10T23:56:00Z", "date_only": false, "value": "2022-05-10T23:56Z", "kind": "other", "label": "Last Modified Date", "source": "gsd \u00b7 GSD-2021-22556", "record": "GSD-2021-22556", "field": "namespaces.nvd.nist.gov.lastModifiedDate"}, {"timestamp": "2023-12-13T01:23:24.450Z", "date_only": false, "value": "2023-12-13T01:23:24.450352Z", "kind": "other", "label": "Updated", "source": "gsd \u00b7 GSD-2021-22556", "record": "GSD-2021-22556", "field": "gsd.osvSchema.modified"}, {"timestamp": "2024-04-03T23:53:27Z", "date_only": false, "value": "2024-04-03T23:53:27Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-CGFP-G9XR-GJ33", "record": "GHSA-CGFP-G9XR-GJ33", "field": "modified"}, {"timestamp": "2024-08-03T18:44:13.719Z", "date_only": false, "value": "2024-08-03T18:44:13.719Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CVE", "record": "CVE-2021-22556", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2025-04-21T13:36:25.693Z", "date_only": false, "value": "2025-04-21T13:36:25.693251Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2021-22556", "field": "containers.adp.1.metrics.0.other.content.timestamp"}, {"timestamp": "2025-04-21T13:36:25.693Z", "date_only": false, "value": "2025-04-21T13:36:25.693251Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-22556", "record": "FKIE_CVE-2021-22556", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2025-04-21T13:54:07.544Z", "date_only": false, "value": "2025-04-21T13:54:07.544Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2021-22556", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2025-04-21T13:54:07.544Z", "date_only": false, "value": "2025-04-21T13:54:07.544Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2021-22556", "field": "containers.adp.1.providerMetadata.dateUpdated"}, {"timestamp": "2025-04-21T14:02:19Z", "date_only": false, "value": "2025-04-21T14:02:19.000000Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/12660", "record": "CVE-2021-22556", "field": "creation_timestamp", "uuid": "8f8b6c06-cefa-447b-a7cb-16f8ad927c1b", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2021-22556\n\ud83d\udd25 CVSS Score: 5.3 (cvssV3_1, Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N)\n\ud83d\udd39 Description: The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don\u2019t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.\n\ud83d\udccf Published: 2022-05-03T15:50:11.000Z\n\ud83d\udccf Modified: 2025-04-21T13:54:07.544Z\n\ud83d\udd17 References:\n1. https://fuchsia.dev/whats-new/release-notes/f4-1\n2. https://fuchsia-review.googlesource.com/c/fuchsia/+/570881", "url": "https://t.me/DarkWebInformer_CVEAlerts/12660"}, {"timestamp": "2026-06-17T03:37:25.717Z", "date_only": false, "value": "2026-06-17T03:37:25.717", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-22556", "record": "FKIE_CVE-2021-22556", "field": "lastModified"}]}