CVE-2025-48615

7.8 HIGH

📋 TL;DR

This vulnerability in Android's MediaButtonReceiverHolder component allows local privilege escalation without user interaction. An attacker could exploit resource exhaustion to cause persistence desynchronization, potentially gaining elevated privileges. All Android devices running vulnerable versions are affected.

💻 Affected Systems

Products:
  • Android
Versions: Specific versions not explicitly stated in references, but appears to be addressed in December 2025 security bulletin
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: Affects Android devices with the vulnerable MediaButtonReceiverHolder component. No specific Android version range provided in available references.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing attacker to execute arbitrary code with system privileges, access sensitive data, and persist across reboots.

🟠

Likely Case

Local privilege escalation allowing unauthorized access to protected system components and user data.

🟢

If Mitigated

Limited impact if device is fully patched and has proper app sandboxing enforced.

🌐 Internet-Facing: LOW - This is a local privilege escalation requiring physical or local access to the device.
🏢 Internal Only: HIGH - Malicious apps or users with local access could exploit this to gain elevated privileges on the device.

🎯 Exploit Status

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

Exploitation requires local access and understanding of Android's MediaButtonReceiverHolder component. No user interaction needed once access is obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Android Security Bulletin December 2025 patches

Vendor Advisory: https://source.android.com/security/bulletin/2025-12-01

Restart Required: Yes

Instructions:

1. Check for Android system updates in Settings > System > System update. 2. Apply the December 2025 security patch. 3. Restart device after installation completes.

🔧 Temporary Workarounds

Disable unnecessary media button receivers

android

Remove or disable non-essential media button receiver components to reduce attack surface

adb shell pm disable <package_name> (for specific apps)
adb shell pm list packages | grep media (to identify media-related packages)

🧯 If You Can't Patch

  • Implement strict app installation policies to prevent malicious apps from being installed
  • Use Android Enterprise or MDM solutions to enforce security policies and monitor for suspicious behavior

🔍 How to Verify

Check if Vulnerable:

Check Android security patch level in Settings > About phone > Android version > Security patch level. If before December 2025, device may be vulnerable.

Check Version:

adb shell getprop ro.build.version.security_patch

Verify Fix Applied:

Verify security patch level shows December 2025 or later in Settings > About phone > Android version > Security patch level.

📡 Detection & Monitoring

Log Indicators:

  • Unusual MediaButtonReceiverHolder activity
  • Resource exhaustion warnings related to media components
  • Unexpected privilege escalation attempts

Network Indicators:

  • Not applicable - local vulnerability

SIEM Query:

source="android_logs" AND ("MediaButtonReceiverHolder" OR "resource exhaustion") AND severity>=WARNING

🔗 References

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