CVE-2026-87491: Google Chromium V8 Out of Bounds Write Vulnerability.

Google Chromium V8 Out of Bounds Write Vulnerability. Google Chromium V8 contains an out of bounds write vulnerability that allows a remote attacker to execute arbitrary code inside the 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 KEV-listed (remediation due 2026-09-23)
• EPSS 3.1% (87.8% percentile)
• CVSS 8.8 high

Related briefings

• Chrome patches 42 flaws, three rated critical 2026-09-16
• Chrome 153 fixes 230 bugs and one is already exploited 2026-09-10
• Spies and ransomware crews root Cisco firewall servers 2026-09-09

Browse the CVE database

Read the full analysis on IntelFusions