CVE-2025-48568: Google Android Privilege Escalation Flaw

CVE-2025-48568 Overview

CVE-2025-48568 is a race condition vulnerability in Google Android that allows a local attacker to bypass the lockscreen. The flaw resides in multiple locations within the Android platform and stems from improper synchronization [CWE-362]. Successful exploitation leads to local privilege escalation without requiring additional execution privileges or user interaction. The vulnerability affects Android 14 and Android 15. Google addressed the issue in the March 2026 Android Security Bulletin.

Critical Impact

An attacker with physical access to a locked Android device can bypass the lockscreen by exploiting a timing window, gaining access to user data and elevated privileges on the device.

Affected Products

• Google Android 14.0
• Google Android 15.0
• Devices receiving security patches prior to the 2026-03-01 patch level

Discovery Timeline

• 2026-03-02 - CVE-2025-48568 published to the National Vulnerability Database (NVD)
• 2026-03-01 - Google releases the Android Security Bulletin March 2026 addressing the issue
• 2026-03-06 - Last updated in NVD database

Technical Details for CVE-2025-48568

Vulnerability Analysis

The vulnerability is a race condition [CWE-362] affecting multiple locations in the Android operating system. Race conditions occur when concurrent execution paths access shared resources without proper synchronization. In this case, the timing window allows an attacker to manipulate the lockscreen authentication state before the system completes its security checks.

The issue qualifies as a local attack because the adversary must have physical proximity to the target device. No user interaction is required, and the attacker does not need prior privileges on the device. Successful exploitation results in confidentiality, integrity, and availability impact at the system level.

Because the flaw requires winning a timing race, exploitation complexity is high. An attacker must repeatedly trigger the race condition under specific timing conditions to reliably bypass the lockscreen.

Root Cause

The root cause is improper synchronization between concurrent threads handling lockscreen state transitions. When two operations execute in an unintended order, the system fails to enforce the expected authentication boundary. This atomicity violation allows the lockscreen to release control of the device interface before authentication completes.

Attack Vector

The attack vector is local with physical access. An attacker manipulates the device interface to trigger concurrent operations on the lockscreen authentication path. By controlling the timing of input events or system state transitions, the attacker forces the race condition to resolve in favor of bypassing authentication. The Android Security Bulletin for March 2026 contains the technical references describing the affected code paths.

Detection Methods for CVE-2025-48568

Indicators of Compromise

• Unexpected unlock events recorded in logcat or system logs without corresponding successful authentication attempts
• Anomalous transitions in KeyguardService or WindowManager state during the locked screen state
• Repeated rapid input events or activity launches occurring while the device is locked

Detection Strategies

• Monitor Android device logs for irregular lockscreen state transitions that do not align with biometric or PIN authentication events
• Use mobile threat defense (MTD) tooling to flag devices running Android 14 or 15 below the 2026-03-01 security patch level
• Correlate physical access events with subsequent privileged actions on enrolled enterprise devices

Monitoring Recommendations

• Enforce attestation checks through enterprise mobility management (EMM) to verify the patch level on enrolled Android devices
• Track devices that have not received the March 2026 Android security patch and prioritize them for remediation
• Audit access to sensitive corporate applications from devices with outdated security patch levels

How to Mitigate CVE-2025-48568

Immediate Actions Required

• Apply the March 2026 Android security patch (2026-03-01 patch level or later) to all affected Android 14 and Android 15 devices
• Inventory enrolled mobile devices and identify those running vulnerable Android versions below the required patch level
• Restrict access to sensitive corporate resources from unpatched Android devices until remediation completes

Patch Information

Google published fixes for CVE-2025-48568 in the Android Security Bulletin March 2026. Device manufacturers must integrate the patch and distribute updates to end users. Confirm that the security patch level on the device reads 2026-03-01 or later after installation.

Workarounds

• Enable biometric or PIN-based re-authentication for sensitive applications to limit exposure if the lockscreen is bypassed
• Configure EMM policies to require the latest security patch level before granting access to corporate data
• Maintain physical control of devices to reduce the opportunity for local exploitation

# Verify the security patch level on an Android device via adb
adb shell getprop ro.build.version.security_patch
# Expected output for patched devices: 2026-03-01 or later