CVE-2025-0077 is a vulnerability identified in Google Android version 15, specifically within multiple functions of the UserController.java component. The root cause is a race condition that leads to a lock screen bypass, allowing an attacker with local access to escalate privileges without needing any additional execution rights or user interaction. The race condition occurs due to improper handling of concurrent operations in the user management code, enabling bypass of lock screen security mechanisms. This vulnerability is classified under CWE-1223, which pertains to race conditions. The flaw allows an attacker to gain limited access to the device, potentially exposing confidential information or bypassing security controls that protect user data. The CVSS v3.1 base score is 4.0, indicating a medium severity with a vector of AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, meaning the attack requires local access but no privileges or user interaction, and impacts confidentiality slightly without affecting integrity or availability. No public exploits have been reported yet, and no patches have been linked at the time of publication. The vulnerability affects only Android 15, the latest major Android release, which is deployed on many modern devices worldwide.

The primary impact of CVE-2025-0077 is a local elevation of privilege through lock screen bypass, which can compromise the confidentiality of user data on affected Android 15 devices. Attackers with physical or local access could exploit this vulnerability to access sensitive information without authentication, undermining device security. Although the integrity and availability of the system are not directly affected, the ability to bypass the lock screen can facilitate further attacks or unauthorized data access. Organizations relying on Android 15 devices, especially in environments where devices are shared or physically accessible by untrusted individuals, face increased risk of data leakage or unauthorized access. The lack of required user interaction and no need for prior privileges lowers the barrier for exploitation, making it a concern for enterprise mobile security. However, the absence of known exploits in the wild and the medium CVSS score suggest the threat is moderate but should not be ignored.

To mitigate CVE-2025-0077, organizations and users should apply official security patches from Google as soon as they become available for Android 15 devices. Until patches are released, enforcing strict physical security controls to prevent unauthorized local access to devices is critical. Employing device encryption and strong authentication methods (e.g., biometrics combined with PIN) may reduce the risk of data exposure. Administrators should monitor device usage and audit access logs for suspicious activity. Additionally, disabling or restricting local debugging and developer options can reduce attack surface. For enterprise environments, mobile device management (MDM) solutions should enforce security policies that limit physical access and lock screen bypass attempts. Regularly updating devices to the latest Android security updates will help prevent exploitation of this and similar vulnerabilities.