CVE-2021-4102
Google Chromium V8 Use-After-Free Vulnerability
Published Dec 15, 2021 · updated Jun 16, 2026 · google chrome
Google Chromium V8 Engine contains a use-after-free 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.
Timeline
Detection, updates, and resolution for this record.
Dec 15, 2021 · Catalog
Detected
Google Chromium V8 Engine contains a use-after-free 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.
Dec 15, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Dec 29, 2021 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
Google Chromium V8 Engine contains a use-after-free 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.
CISA due date Dec 29, 2021
Affected
- cpe google/chromeversion unspecified
- vendor Google Chromium V8version unspecified
Sources
- CISA KEVCVE-2021-4102
Google Chromium V8 Engine contains a use-after-free 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.
cisa.gov - CVE.orgCVE-2021-4102
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-4102
30-day exploitation probability 7.8%
first.org - NIST NVDCVE-2021-4102
Use after free in V8 in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
nvd.nist.gov