{"id":"CVE-2021-37973","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-37973","summary":null,"details":"Use after free in Portals in Google Chrome prior to 94.0.4606.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.","published":"2021-10-08T22:15:08.287Z","modified":"2026-04-16T04:30:30.458640045Z","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":0.11641,"percentile":0.95729,"asOf":"2026-08-27"},"cisaKev":{"dateAdded":"2021-11-03","dueDate":"2021-11-17","knownRansomwareCampaignUse":false},"exploitsKnown":3,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37973"},{"type":"ADVISORY","url":"https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5046"},{"type":"FIX","url":"https://crbug.com/1251727"}],"provenance":{"sources":["OSV.dev","CISA KEV","FIRST.org (EPSS)"],"lastVerified":"2026-04-16T04:30:30.458640045Z"}}