{"uuid": "dd5dcca1-876d-4a1d-a270-9da9f10fa3a5", "vulnerability": {"vulnId": "CVE-2021-3493", "altId": []}, "gcve": {"origin_uuid": "caeb2787-0d58-4236-9039-7c86c3e566f3", "object_uuid": "dd5dcca1-876d-4a1d-a270-9da9f10fa3a5"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2022-10-20T02:00:00+02:00"}, "timestamps": {"asserted_at": "2022-10-20T00:00:00+00:00", "recorded_at": "2026-10-02T07:08:31+00:00", "first_seen_at": "2022-10-20T00:00:00+00:00"}, "scope": {"notes": "The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on... | Affected: Ubuntu / linux kernel | CVSS: 8.8 (HIGH) | EPSS: 0.49166 | Used in malware: unknown | Not yet in CISA KEV: False"}, "evidence": [{"type": "public_report", "source": "previdian", "signal": "successful_exploitation", "confidence": 0.7, "details": {"feed": "Previdian (previdian.com)", "title": "The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on...", "cve_id": "CVE-2021-3493", "vendor": "Ubuntu", "ghsa_id": null, "product": "linux kernel", "added_date": "2022-10-20T00:00:00.000Z", "cvss_score": 8.8, "epss_score": 0.49166, "previous_ids": [], "cvss_severity": "HIGH", "virtual_patch": false, "cvss_estimated": false, "epss_percentile": 0.98851, "used_in_malware": "unknown", "vulnerability_id": "CVE-2021-3493", "ahead_of_cisa_kev": null, "not_yet_in_cisa_kev": false}}], "references": [{"id": "CVE-2021-3493", "url": "https://www.cve.org/CVERecord?id=CVE-2021-3493"}, {"id": "previdian", "url": "https://previdian.com/CVE-2021-3493"}]}