CVE-2025-48537

7.1 HIGH

📋 TL;DR

This CVE describes an improper input validation vulnerability in Android that allows local denial-of-service attacks without user interaction. It could lead to persistent device unavailability and potential information disclosure. Affected systems include Android devices running vulnerable versions.

💻 Affected Systems

Products:
  • Android
Versions: Specific versions mentioned in Android Security Bulletin 2025-09-01
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in multiple locations in Android framework base

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Persistent device denial-of-service rendering the device unusable until factory reset, with potential local information disclosure.

🟠

Likely Case

Local denial-of-service requiring device reboot to restore functionality.

🟢

If Mitigated

Minimal impact if patched or with proper input validation controls.

🌐 Internet-Facing: LOW (requires local access to device)
🏢 Internal Only: MEDIUM (malicious apps or local users could exploit)

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

No user interaction needed but requires local access to device

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Android Security Patch Level 2025-09-01 or later

Vendor Advisory: https://source.android.com/security/bulletin/2025-09-01

Restart Required: Yes

Instructions:

1. Check for system updates in Settings > System > System update. 2. Install available security updates. 3. Reboot device after installation.

🔧 Temporary Workarounds

Restrict app installation

android

Only install apps from trusted sources like Google Play Store

🧯 If You Can't Patch

  • Monitor device for unusual behavior or crashes
  • Limit installation of untrusted applications

🔍 How to Verify

Check if Vulnerable:

Check Settings > About phone > Android version > Security patch level

Check Version:

adb shell getprop ro.build.version.security_patch

Verify Fix Applied:

Verify Security Patch Level is 2025-09-01 or later

📡 Detection & Monitoring

Log Indicators:

  • Unexpected system crashes
  • Framework base process failures
  • Input validation errors in system logs

Network Indicators:

  • None (local vulnerability)

SIEM Query:

Search for Android system crashes or framework errors in device logs

🔗 References

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