CVE-2025-8010: Google Chrome V8 RCE Vulnerability

CVE-2025-8010 Overview

A type confusion vulnerability exists in the V8 JavaScript engine used by Google Chrome prior to version 138.0.7204.168. This vulnerability allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. The flaw is classified under CWE-843 (Access of Resource Using Incompatible Type), indicating that the V8 engine incorrectly handles type information during JavaScript execution.

Critical Impact

Remote attackers can exploit this vulnerability to achieve heap corruption, potentially leading to arbitrary code execution on the victim's system simply by visiting a malicious webpage.

Affected Products

• Google Chrome versions prior to 138.0.7204.168
• Chromium-based browsers on Microsoft Windows
• Chromium-based browsers on Apple macOS
• Chromium-based browsers on Linux

Discovery Timeline

• 2025-07-22 - CVE-2025-8010 published to NVD
• 2025-09-26 - Last updated in NVD database

Technical Details for CVE-2025-8010

Vulnerability Analysis

This type confusion vulnerability resides in Google Chrome's V8 JavaScript engine, which is responsible for executing JavaScript code within the browser. Type confusion vulnerabilities occur when a program allocates or initializes a resource using one type but later accesses that resource using an incompatible type. In the context of V8, this can lead to the engine misinterpreting object properties or memory layouts, ultimately resulting in heap corruption.

The attack requires user interaction—specifically, the victim must navigate to a malicious webpage containing crafted HTML and JavaScript. Once triggered, the vulnerability can corrupt heap memory structures, potentially allowing an attacker to achieve arbitrary code execution within the context of the browser process. Given that V8 is a core component handling all JavaScript execution, this vulnerability affects all major desktop platforms where Chrome operates.

Root Cause

The root cause is a type confusion error (CWE-843) within the V8 JavaScript engine. During certain JavaScript operations, the engine incorrectly identifies or casts an object to an incompatible type. This misidentification causes the engine to access memory regions with incorrect assumptions about their structure, leading to heap corruption. Such issues commonly arise in JIT (Just-In-Time) compilation optimizations where type inference may produce incorrect assumptions under specific code patterns.

Attack Vector

The attack is network-based and requires user interaction. An attacker must craft a malicious HTML page containing JavaScript code designed to trigger the type confusion in V8. The attack scenario typically involves:

1. Attacker hosts a malicious webpage or compromises a legitimate website to inject malicious content
2. Victim visits the malicious page using a vulnerable version of Google Chrome
3. The crafted JavaScript executes, triggering the type confusion vulnerability
4. Heap corruption occurs, potentially allowing the attacker to gain code execution

The vulnerability requires no special privileges and can be exploited through standard web browsing activity.

Detection Methods for CVE-2025-8010

Indicators of Compromise

• Unexpected Chrome renderer process crashes or high memory consumption when visiting unfamiliar websites
• Presence of suspicious JavaScript files or obfuscated code in browser cache associated with unusual domains
• Abnormal child process creation spawned from Chrome browser processes
• Detection of heap spray patterns or unusual memory allocation behaviors in browser telemetry

Detection Strategies

• Deploy endpoint detection and response (EDR) solutions capable of monitoring browser process behavior and detecting anomalous memory operations
• Implement network-based detection for known malicious domains or URLs associated with V8 exploitation attempts
• Monitor for unusual browser crashes or exploitation indicators that may signal attempted attacks
• Use browser isolation technologies to contain potential exploitation attempts

Monitoring Recommendations

• Enable Chrome's built-in crash reporting to identify potential exploitation attempts
• Monitor endpoint logs for Chrome renderer process anomalies or unexpected terminations
• Implement SentinelOne's Singularity platform to detect post-exploitation behaviors and memory corruption attacks
• Track browser version inventory across the organization to identify unpatched systems

How to Mitigate CVE-2025-8010

Immediate Actions Required

• Update Google Chrome to version 138.0.7204.168 or later immediately across all systems
• Enable automatic updates for Chrome to ensure timely patching of future vulnerabilities
• Consider implementing browser isolation solutions to protect against web-based exploitation
• Deploy endpoint protection with memory corruption detection capabilities

Patch Information

Google has released a fix in Chrome version 138.0.7204.168. Organizations should update all Chrome installations immediately. The patch addresses the type confusion vulnerability in the V8 JavaScript engine. For detailed information, see the Google Chrome Update Announcement and the Chromium Issue Tracker Entry.

Workarounds

• Temporarily disable JavaScript execution in Chrome for untrusted sites via chrome://settings/content/javascript (impacts functionality significantly)
• Use browser isolation or sandboxing solutions to contain potential exploitation attempts
• Implement network-level filtering to block access to known malicious domains
• Consider using alternative browsers temporarily until Chrome can be updated in environments where immediate patching is not feasible