Google Chromium V8
YES - ON THE CISA KEV LIST
CVE-2021-4102
Google Chromium V8 Use-After-Free Vulnerability
overdue since 2021-12-29
Google: 77 entries (4.3% of all KEV entries are from this vendor); 10 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
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 (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-4102
References
Other KEV entries for this vendor: Google
- CVE-2026-125350 - Chromium (2026-11-10)
- CVE-2026-111497 - Brotli (2026-10-27)
- CVE-2026-58704 - Pixel (2026-09-16)
- CVE-2026-87491 - Chromium V8 (2026-09-09)
- CVE-2026-85046 - Chromium V8 (2026-09-04)
- CVE-2026-11645 - Chromium V8 (2026-06-09)
- CVE-2026-5281 - Dawn (2026-04-01)
- CVE-2026-3910 - Chromium V8 (2026-03-13)
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