CVE-2025-11207
📋 TL;DR
This vulnerability allows a remote attacker to perform arbitrary read/write operations through side-channel information leakage in Chrome's storage component. Attackers can exploit this via a crafted HTML page to potentially access or modify sensitive data. All users running vulnerable versions of Google Chrome are affected.
💻 Affected Systems
- Google Chrome
- Chromium-based browsers
📦 What is this software?
Chrome by Google
Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...
Learn more about Chrome →⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of browser data including saved passwords, cookies, and local storage, potentially leading to account takeover and data theft.
Likely Case
Limited data exfiltration from browser storage such as session tokens or cached sensitive information.
If Mitigated
No impact if Chrome is updated to patched version or if browser isolation/sandboxing prevents malicious page execution.
🎯 Exploit Status
Exploitation requires user to visit a malicious webpage but no authentication or special permissions needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 141.0.7390.54 or later
Vendor Advisory: https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_30.html
Restart Required: Yes
Instructions:
1. Open Chrome and click the three-dot menu. 2. Go to Help > About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome with the update.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents malicious HTML pages from executing exploit code
chrome://settings/content/javascript > Block
Use Browser Isolation
allRun Chrome in isolated environment or sandbox
🧯 If You Can't Patch
- Implement network filtering to block known malicious domains
- Use application allowlisting to restrict browser usage to essential sites only
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings > About Chrome. If version is below 141.0.7390.54, system is vulnerable.Check Version:
On Windows: chrome://version/ | On Linux: google-chrome --version | On macOS: /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --versionVerify Fix Applied:
Confirm Chrome version is 141.0.7390.54 or higher in About Chrome page.📡 Detection & Monitoring
Log Indicators:
- Unusual Chrome process behavior
- Multiple rapid storage access patterns
- Unexpected file operations in Chrome user data directory
Network Indicators:
- Connections to suspicious domains followed by unusual data exfiltration patterns
SIEM Query:
source="chrome_audit_logs" AND (event="storage_access" OR event="file_operation") AND frequency>1000