CVE-2025-22420 is a vulnerability identified in multiple locations within Google Android versions 13 to 16, involving a confused deputy problem that enables leakage of audio files across different user profiles. The confused deputy issue occurs when a privileged component improperly uses its authority on behalf of a less privileged user, leading to unauthorized access. In this case, the flaw allows a local attacker with limited privileges to access audio files belonging to other user profiles without needing additional execution privileges or user interaction. This cross-profile data leakage can lead to elevation of privilege, compromising confidentiality by exposing sensitive audio data, integrity by potentially manipulating audio files, and availability by disrupting normal access controls. The CVSS v3.1 score of 7.8 reflects high severity, with attack vector local, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The vulnerability is classified under CWE-441, indicating incorrect resource transfer between security domains. No patches are currently linked, and no known exploits have been reported in the wild, but the risk remains significant due to the wide deployment of affected Android versions and the potential for stealthy exploitation.

The impact of CVE-2025-22420 is significant for organizations and individuals using affected Android versions (13 to 16). Successful exploitation allows local attackers to escalate privileges by accessing audio files across user profiles, potentially exposing sensitive voice recordings, conversations, or other audio data. This breach of confidentiality can lead to privacy violations, corporate espionage, or leakage of sensitive information. Integrity may be compromised if attackers modify audio files or use the elevated privileges to manipulate other system components. Availability could also be affected if the exploit is leveraged to disrupt normal user profile operations. Since exploitation requires only local access with low privileges and no user interaction, attackers who gain limited device access (e.g., through physical access, malicious apps with limited permissions, or compromised user accounts) can leverage this flaw. This increases the risk in environments where devices are shared or used in multi-user contexts, such as corporate or educational settings. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits once patches are released or if the vulnerability is reverse-engineered.

To mitigate CVE-2025-22420 effectively, organizations should: 1) Monitor for official security updates from Google and apply patches promptly once available, as no patches are currently linked but are expected given the vulnerability's severity. 2) Enforce strict user profile separation policies on Android devices, limiting cross-profile data sharing and access rights to audio files. 3) Restrict installation of untrusted or unnecessary applications that could gain local access and attempt exploitation. 4) Employ mobile device management (MDM) solutions to enforce security configurations and monitor for suspicious local privilege escalation attempts. 5) Educate users about the risks of granting permissions to apps and the importance of device security hygiene. 6) Consider disabling or restricting audio recording features in multi-user environments where feasible. 7) Use runtime application self-protection (RASP) or endpoint detection and response (EDR) tools capable of detecting anomalous local privilege escalation behaviors on Android devices. These steps go beyond generic advice by focusing on profile isolation, application control, and proactive monitoring tailored to the nature of this vulnerability.