{"id":"CVE-2026-121247","published":"2026-11-03T21:17:35.220","lastModified":"2026-11-04T05:18:37.560","description":"Buffer overflow in Dawn in Google Chrome on on Android prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)","cvssScore":9.6,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cwes":["CWE-122"],"vendors":[],"products":[],"references":[{"url":"https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html","tags":[]},{"url":"https://issues.chromium.org/issues/569161611","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A heap-based buffer overflow in Google Chrome's Dawn WebGPU implementation on Android prior to version 157.0.8103.38 allowed remote attackers to execute arbitrary code outside the sandbox via a malicious HTML page, leveraging user interaction.","exploitability":"Exploitation requires a user to visit a crafted HTML page and interact with it (e.g., by triggering WebGPU usage), but otherwise needs no privileges or local access.","blast_radius":"Successful exploitation could lead to full system compromise outside Chrome's sandbox, enabling data theft, malware installation, or lateral movement on the device.","remediation":"Upgrade Google Chrome for Android to version 157.0.8103.38 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","buffer-overflow","sandbox-escape","android","web"],"model":"garnet-coder","analyzedAt":"2026-11-04T09:53:12.158Z"}}