CVE-2025-67316
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on devices running realme Internet browser v.45.13.4.1 by tricking users into visiting a malicious webpage. The attack exploits a cross-site scripting (XSS) weakness in the built-in HeyTap/ColorOS browser component. All users of this specific browser version on realme devices are affected.
💻 Affected Systems
- realme Internet browser
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise allowing attacker to install malware, steal sensitive data, or gain persistent access to the device.
Likely Case
Session hijacking, credential theft, or installation of unwanted software through drive-by download attacks.
If Mitigated
Limited impact if browser sandboxing works properly, potentially just temporary script execution in browser context.
🎯 Exploit Status
Exploitation requires user to visit attacker-controlled webpage. The GitHub gist suggests proof-of-concept exists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://realme.com
Restart Required: No
Instructions:
1. Check for browser updates in Google Play Store or device settings. 2. If update available, install immediately. 3. If no update, follow workarounds.
🔧 Temporary Workarounds
Disable JavaScript
androidPrevents script execution that could exploit the vulnerability
Use Alternative Browser
androidSwitch to a different browser like Chrome or Firefox until patch available
🧯 If You Can't Patch
- Block access to untrusted websites using network filtering or parental controls
- Educate users to avoid clicking unknown links and enable browser security warnings
🔍 How to Verify
Check if Vulnerable:
Open realme Internet browser > Settings > About browser > Check version is 45.13.4.1Check Version:
Not applicable for mobile devices - check through browser settingsVerify Fix Applied:
Update browser and verify version is higher than 45.13.4.1📡 Detection & Monitoring
Log Indicators:
- Unusual browser crashes
- Suspicious JavaScript execution patterns
- Unexpected file downloads
Network Indicators:
- Connections to known malicious domains from browser process
- Unusual outbound traffic patterns
SIEM Query:
source="android_browser" AND (event="crash" OR event="suspicious_script")