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Findings

CVE-2021-21224

Google Chromium V8 Type Confusion Vulnerability

Published Apr 26, 2021 · updated Jun 16, 2026 · google chrome

Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to execute code inside a sandbox 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.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 26, 2021 · Catalog

    Detected

    Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to execute code inside a sandbox 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.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Nov 17, 2021 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to execute code inside a sandbox 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.

CISA due date Nov 17, 2021

Affected

  • cpe debian/debian linux10.0
  • cpe fedoraproject/fedora32
  • cpe fedoraproject/fedora33
  • cpe fedoraproject/fedora34
  • cpe google/chromeversion unspecified
  • vendor Google Chromium V8version unspecified

Sources

  • CISA KEVCVE-2021-21224

    Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to execute code inside a sandbox 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.

    cisa.gov
  • CVE.orgCVE-2021-21224

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2021-21224

    30-day exploitation probability 84.2%

    first.org
  • NIST NVDCVE-2021-21224

    Type confusion in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

    nvd.nist.gov

References