CVE-2025-10892 Overview
CVE-2025-10892 is a high-severity integer overflow vulnerability in the V8 JavaScript engine used by Google Chrome. The vulnerability exists in Chrome versions prior to 140.0.7339.207 and allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This type of vulnerability in V8, Chrome's core JavaScript execution engine, represents a significant security risk as it can be exploited through malicious web content.
Critical Impact
Remote attackers can exploit this integer overflow to corrupt heap memory, potentially leading to arbitrary code execution when users visit malicious websites or open crafted HTML content.
Affected Products
- Google Chrome versions prior to 140.0.7339.207
- Google Chrome on Microsoft Windows
- Google Chrome on Apple macOS
- Google Chrome on Linux
Discovery Timeline
- 2025-09-24 - CVE-2025-10892 published to NVD
- 2025-09-25 - Last updated in NVD database
Technical Details for CVE-2025-10892
Vulnerability Analysis
This vulnerability stems from an integer overflow condition within the V8 JavaScript engine (CWE-190). When specific arithmetic operations are performed on integer values without proper bounds checking, the result can exceed the maximum value representable by the data type, causing it to wrap around to a smaller or negative number. In this case, the flawed calculation leads to incorrect memory allocation sizes, which subsequently causes heap corruption when the undersized buffer is used.
The external parameter reference weakness (CWE-472) also plays a role, as external input from crafted JavaScript or HTML content can influence the vulnerable code path. This combination allows attackers to trigger the overflow through carefully constructed web content.
Root Cause
The root cause is an integer overflow in V8's internal arithmetic operations, likely within array handling, object property storage, or JIT compilation routines. When processing maliciously crafted JavaScript code or HTML content, certain integer calculations overflow, resulting in the allocation of an incorrectly sized heap buffer. Subsequent operations then write beyond the allocated boundary, corrupting adjacent heap memory structures.
Attack Vector
The attack is network-based and requires user interaction. An attacker must craft a malicious HTML page containing JavaScript that triggers the integer overflow condition in V8. When a victim visits this page using a vulnerable Chrome browser, the overflow occurs during JavaScript execution, corrupting heap memory. The attacker can potentially leverage this corruption to achieve code execution within the browser's renderer process.
The attack flow follows this pattern: a victim navigates to an attacker-controlled or compromised website, the malicious JavaScript executes in the V8 engine, integer overflow triggers during specific operations, heap memory is corrupted through incorrect buffer sizing, and the attacker may chain this with additional techniques to gain code execution.
Detection Methods for CVE-2025-10892
Indicators of Compromise
- Unexpected browser crashes or renderer process terminations while browsing
- Chrome crash reports indicating V8 JavaScript engine failures
- Evidence of browser exploitation attempts in security logs or endpoint telemetry
- Suspicious JavaScript execution patterns with unusual memory allocation behaviors
Detection Strategies
- Monitor for Chrome versions below 140.0.7339.207 across the enterprise using asset management tools
- Implement endpoint detection rules for browser crash patterns associated with heap corruption
- Deploy network-based detection for known malicious HTML/JavaScript patterns targeting V8
- Enable Chrome's crash reporting and analyze reports for V8-related memory corruption signatures
Monitoring Recommendations
- Configure SentinelOne agents to monitor browser process behaviors for signs of exploitation
- Implement browser version auditing to identify vulnerable Chrome installations
- Enable JavaScript execution monitoring on high-value endpoints
- Review web proxy logs for access to domains associated with browser exploitation campaigns
How to Mitigate CVE-2025-10892
Immediate Actions Required
- Update Google Chrome to version 140.0.7339.207 or later immediately across all systems
- Verify automatic Chrome updates are enabled and functioning properly
- Prioritize patching for systems with internet-facing browser usage
- Consider restricting access to untrusted websites until patching is complete
Patch Information
Google has released Chrome version 140.0.7339.207 which addresses this vulnerability. The fix resolves the integer overflow condition in V8 by implementing proper bounds checking for the affected arithmetic operations. Detailed patch information is available in the Chrome Releases Blog and the Chromium Issue Tracker #444048019.
Organizations should deploy this update through their standard patch management processes. Chrome's built-in auto-update mechanism should handle updates automatically for most deployments, but enterprise environments with managed Chrome installations should push the update through their management console.
Workarounds
- Enable Site Isolation in Chrome if not already active to limit exploitation impact
- Consider using browser isolation solutions for accessing untrusted content
- Implement network-level filtering to block access to known malicious domains
- Deploy content security policies that restrict JavaScript execution on sensitive internal applications
# Verify Chrome version from command line
# Windows (PowerShell)
(Get-Item "C:\Program Files\Google\Chrome\Application\chrome.exe").VersionInfo.FileVersion
# macOS
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --version
# Linux
google-chrome --version
# Ensure version is 140.0.7339.207 or higher
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
