Google patches multiple Chrome V8 flaws enabling web-based remote code execution
Google released Chrome fixes for multiple high-severity vulnerabilities in the V8 JavaScript engine, including CVE-2025-10891, CVE-2025-10892, and CVE-2025-9864, that could be triggered when a user visits a malicious web page. The flaws include integer overflows and a use-after-free condition that can cause heap corruption in the browser renderer and potentially lead to arbitrary code execution. A related bulletin also lists CVE-2025-10890, a V8 side-channel information disclosure issue, alongside the two integer overflow bugs, warning that successful exploitation could expose sensitive data or enable full system compromise.
Google said the affected Chrome builds were patched across Windows, macOS, and Linux in the 140.0.7339 release line, with fixes landing in versions including 140.0.7339.80/.81 and later 140.0.7339.207/.208 depending on the flaw and platform. Several of the vulnerabilities were reportedly identified by Google’s AI-based Big Sleep system, and no public proof-of-concept exploits were cited in the referenced reports. Organizations using Chrome or Chromium-based browsers were urged to deploy the vendor updates promptly because the bugs are reachable through routine web browsing and may also affect downstream browsers that have not yet incorporated the upstream patches.

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How this story unfolded
6 events from the most recent confirmed update back to the earliest known activity.
Security bulletin documents three Chrome V8 vulnerabilities
A bulletin described three Google Chrome V8 vulnerabilities: CVE-2025-10890, CVE-2025-10891, and CVE-2025-10892. It states CVE-2025-10890 enables information disclosure and the other two integer overflow flaws can allow remote code execution, and recommends applying the vendor update.
Google patches Chrome V8 flaws CVE-2025-10891 and CVE-2025-10892
Google fixed high-severity integer overflow vulnerabilities CVE-2025-10891 and CVE-2025-10892 in Chrome's V8 JavaScript engine in version 140.0.7339.207/.208. The flaws could allow heap corruption and potentially arbitrary code execution when a victim visits a malicious web page, and the content says they were discovered by Google's Big Sleep system.
Chrome 140.0.7339.185/.186 patches ANGLE flaw CVE-2025-10502
Google patched CVE-2025-10502, a heap buffer overflow in Chrome's ANGLE graphics engine, by adding stricter bounds checking. The flaw affected Chrome on Windows, macOS, and Linux before versions 140.0.7339.185 or 140.0.7339.186 depending on platform.
Google issues September 2025 Android patch for CVE-2025-32320
Google's September 2025 Android Security Bulletin addressed CVE-2025-32320, a local privilege escalation flaw in Android 16 System UI that could let attackers access images belonging to other users on a shared device. The content states affected devices are those prior to security patch level 2025-09-05.
Chrome 140.0.7339.80/.81 fixes V8 use-after-free CVE-2025-9864
Google made fixes available for CVE-2025-9864, a high-severity use-after-free vulnerability in Chrome's V8 engine that could be triggered via a malicious web page. The patched versions are Chrome 140.0.7339.80 for Linux and 140.0.7339.80/.81 for Windows and Mac.
Google patches Android Skia flaw CVE-2025-32318 in Android 16
Google addressed CVE-2025-32318, a critical heap-based buffer overflow in the Skia graphics engine, through Android 16 System component patches integrated into AOSP. The content says users should update to security patch level 2025-07-01 or later.
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SB20250923100 - Multiple vulnerabilities in Google Chrome
cybersecurity-help.cz
Open sourceChrome V8 Integer Overflow (CVE-2025-10891): Brief Summary and Patch Details - ZeroPath Blog | ZeroPath
zeropath.com
Open sourceGoogle Chrome V8 Integer Overflow (CVE-2025-10892): Brief Summary and Technical Review - ZeroPath Blog | ZeroPath
zeropath.com
Open sourceGoogle Chrome ANGLE Heap Buffer Overflow (CVE-2025-10502): Brief Summary and Patch Guidance - ZeroPath Blog | ZeroPath
zeropath.com
Open sourceAndroid System UI CVE-2025-32320: Brief Summary of a Confused Deputy Privilege Escalation Vulnerability - ZeroPath Blog | ZeroPath
zeropath.com
Open sourceAndroid Skia Heap Buffer Overflow (CVE-2025-32318): Brief Summary and Patch Guidance - ZeroPath Blog | ZeroPath
zeropath.com
Open sourceGoogle Chrome V8 Use-After-Free (CVE-2025-9864): Brief Summary and Technical Review - ZeroPath Blog | ZeroPath
zeropath.com
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