{"uuid": "3abb971d-fd0e-41f1-8e04-c86a448d9e58", "vulnerability": {"vulnId": "CVE-2021-21220", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "3abb971d-fd0e-41f1-8e04-c86a448d9e58"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2021-11-03T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2021-11-03T00:00:00Z", "recorded_at": "2026-02-02T13:24:01Z", "first_seen_at": "2021-11-03T00:00:00Z"}, "scope": {"notes": "KEV entry: Google Chromium V8 Improper Input Validation Vulnerability | Affected: Google / Chromium V8 | Description: Google Chromium V8 Engine contains an improper input validation vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera. | Required action: Apply updates per vendor instructions. | Due date: 2021-11-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-21220"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-20", "CWE-122"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "Chromium V8", "due_date": "2021-11-17", "date_added": "2021-11-03", "vendorProject": "Google", "vulnerabilityName": "Google Chromium V8 Improper Input Validation Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2021-21220", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-21220"}]}