Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since June 9, 2026.
CVE-2026-11645
Google Chromium V8 Out-of-Bounds Read and Write Vulnerability
Google · Chromium V8
Published July 21, 2026
What happened
Google Chromium V8 out-of-bounds read and write vulnerability that could allow a remote attacker to execute arbitrary 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.
What it means for your business
Google Chromium V8 is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-11645). Google Chromium V8 out-of-bounds read and write vulnerability that could allow a remote attacker to execute arbitrary 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 remediation due date: 2026-06-23. PremierePC tracks KEV alerts for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: June 23, 2026
Sources
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