{"id":"CVE-2021-30633","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-30633","summary":null,"details":"Use after free in Indexed DB API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.","published":"2021-10-08T21:15:07.650Z","modified":"2026-04-16T04:34:01.474774445Z","cvss":{"score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"epss":{"score":0.32657,"percentile":0.98227,"asOf":"2026-09-08"},"cisaKev":null,"exploitsKnown":3,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30633"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/"},{"type":"ADVISORY","url":"https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/"},{"type":"REPORT","url":"https://crbug.com/1247766"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-16T04:34:01.474774445Z"}}