{"cve_id":"CVE-2021-30563","published":"2021-08-03T19:15:08.230000+00:00","last_modified":"2026-06-17T03:50:28.343000+00:00","vuln_status":"Analyzed","description":"Type Confusion in V8 in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","base_score":8.8,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"REQUIRED","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-843"],"in_kev":true,"kev_date_added":"2021-11-03","kev_ransomware":false,"epss_score":0.09,"epss_percentile":0.9527,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":true,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:46:15.678744+00:00","first_seen":"2021-08-03T19:15:08.230000+00:00","kev_first_seen":"2021-11-03T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["google"],"products":["chrome"],"affected":[{"vendor":"google","product":"chrome","ranges":["< 91.0.4472.164"]}]}