CVE-2026-11645 — Google Chrome V8 out-of-bounds read/write exploited in the wild, added to CISA KEV
Google patched CVE-2026-11645 (CVSS 8.8), an out-of-bounds read and write in the V8 engine, in Chrome 149.0.7827.103; a crafted HTML page achieves code execution inside the renderer sandbox (Chrome, 2026-06-08). The bug was exploited in the wild before patching and CISA added it to the KEV catalog on 9 June; per the Chrome advisory it affects Chromium-based browsers including Edge and Opera (Chrome, 2026-06-08). The KEV listing is the operational signal here — confirmed active exploitation of a one-click browser bug (T1189, T1203). Update Chrome/Edge/Opera to 149.0.7827.103+ across the estate.
Google patched CVE-2026-11645 (CVSS 8.8), an out-of-bounds read and write in the V8 engine, in Chrome 149.0.7827.103; a crafted HTML page achieves code execution inside the renderer sandbox (Chrome, 2026-06-08).
ATT&CK mapping
2 techniques mapped from the cited reporting · MITRE ATT&CK v19.1
Initial Access TA0001
T1189Drive-by Compromise
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing. Multiple ways of delivering exploit code to a browser exist (i.e., Drive-by Target), including:
Execution TA0002
T1203Exploitation for Client Execution
Adversaries may exploit software vulnerabilities in client applications to execute code. Vulnerabilities can exist in software due to unsecure coding practices that can lead to unanticipated behavior. Adversaries can take advantage of certain vulnerabilities through targeted exploitation for the purpose of arbitrary code execution. Oftentimes the most valuable exploits to an offensive toolkit are those that can be used to obtain code execution on a remote system because they can be used to gain access to that system. Users will expect to see files related to the applications they commonly used to do work, so they are a useful target for exploit research and development because of their high utility.
Sources
AI-generated · no human review · this permalink is the shareable record for the finding · verify operationally critical claims against the linked primary source.