CVE-2021-4102 on CISA KEV

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.

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• chromereleases.googleblog.com — https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_…
• crbug.com — https://crbug.com/1278387

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Google	Chrome	unspecified

06Detection

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