{"uuid": "6c652996-42e8-4fec-a12e-751f9915b7b9", "vulnerability": {"vulnId": "CVE-2021-43226", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "6c652996-42e8-4fec-a12e-751f9915b7b9"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2025-10-06T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2025-10-06T00:00:00Z", "recorded_at": "2026-02-02T13:24:01Z", "first_seen_at": "2025-10-06T00:00:00Z"}, "scope": {"notes": "KEV entry: Microsoft Windows Privilege Escalation Vulnerability | Affected: Microsoft / Windows | Description: Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2025-10-27 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43226 ; https://nvd.nist.gov/vuln/detail/CVE-2021-43226"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": [], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "Windows", "due_date": "2025-10-27", "date_added": "2025-10-06", "vendorProject": "Microsoft", "vulnerabilityName": "Microsoft Windows Privilege Escalation Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2021-43226", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-43226"}]}