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Exploited Added to CISA's list June 9, 2026

Google Chromium V8: Out-of-Bounds Read and Write Vulnerability

What to do: Update Chrome, and other Chromium browsers such as Edge, Brave and Opera. Restart the browser to finish.

Affects
Google Chromium V8
Identifier
CVE-2026-11645
What it is
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.
Official guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
National Vulnerability Database entry

"Exploited" means CISA has evidence attackers are using this flaw. Being on the list does not mean your device was attacked; it means the update matters.