CVE-2025-32321

7.8 HIGH

📋 TL;DR

This CVE describes a confused deputy vulnerability in Android's Settings app that allows bypassing intent type checks. Attackers can exploit this to escalate privileges locally without requiring user interaction. Android devices running vulnerable versions are affected.

💻 Affected Systems

Products:
  • Android Settings application
Versions: Android versions prior to the September 2025 security patch
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: Affects Android devices where the Settings app has not been updated with the September 2025 security patches.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full local privilege escalation allowing attackers to execute arbitrary code with system-level permissions, potentially compromising the entire device.

🟠

Likely Case

Local attackers gain elevated privileges to access sensitive data or perform unauthorized actions within the Settings app context.

🟢

If Mitigated

With proper patching, the vulnerability is eliminated; without patching, Android's sandboxing may limit some impact but not prevent privilege escalation.

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

🎯 Exploit Status

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

Exploitation requires local access and understanding of Android intent mechanisms, but no user interaction is needed once triggered.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Android September 2025 security patch level

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

Restart Required: Yes

Instructions:

1. Apply the September 2025 Android security patch. 2. Update the Settings app through Google Play Store if available. 3. Reboot the device after patching.

🔧 Temporary Workarounds

Disable unnecessary apps

android

Reduce attack surface by disabling or removing unnecessary applications that could be used as attack vectors.

🧯 If You Can't Patch

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

🔍 How to Verify

Check if Vulnerable:

Check Android security patch level in Settings > About phone > Android version. If patch level is earlier than September 2025, device is vulnerable.

Check Version:

adb shell getprop ro.build.version.security_patch

Verify Fix Applied:

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

📡 Detection & Monitoring

Log Indicators:

  • Unusual Settings app activity, unexpected permission escalations, or abnormal intent calls in system logs

Network Indicators:

  • Not applicable - this is a local privilege escalation vulnerability

SIEM Query:

Not applicable for network SIEM; monitor device logs for suspicious Settings app behavior

🔗 References

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