CVE-2025-48619 is a vulnerability identified in multiple functions within ContentProvider.java in Google Android versions 14, 15, and 16. The root cause is a logic error that allows an application with only read-only access permissions to truncate files, which should not be possible under normal access control policies. This flaw effectively bypasses the intended access restrictions, enabling local privilege escalation without requiring additional execution privileges or user interaction. The vulnerability affects the confidentiality, integrity, and availability of data on the device because truncating files can lead to data loss or unauthorized modification. The vulnerability is categorized under CWE-284, indicating improper access control mechanisms. Although no public exploits have been reported, the vulnerability’s characteristics make it a serious threat, especially in environments where untrusted or malicious apps can be installed. The CVSS v3.1 base score of 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) highlights the high severity, with local attack vector, low attack complexity, no privileges required, and no user interaction needed. This vulnerability underscores the importance of rigorous access control enforcement in Android’s content provider framework, which is widely used for inter-app data sharing.

The impact of CVE-2025-48619 is significant for organizations and individual users relying on affected Android versions. Successful exploitation allows a local attacker to escalate privileges from a low-privilege app context to potentially full control over sensitive files by truncating them, which can lead to data corruption, loss, or unauthorized data manipulation. This compromises confidentiality, integrity, and availability of data on the device. For enterprises, this could mean exposure of sensitive corporate data, disruption of mobile workflows, and increased risk of lateral movement within mobile device management environments. The lack of required user interaction and no need for additional privileges makes this vulnerability easier to exploit once a malicious app is installed, increasing the attack surface. Although no known exploits are currently in the wild, the vulnerability could be leveraged in targeted attacks or malware campaigns. Organizations with BYOD policies or those distributing apps via third-party stores face elevated risks. The vulnerability also threatens mobile banking, healthcare, and government sectors where Android devices are prevalent.

To mitigate CVE-2025-48619, organizations and users should: 1) Monitor for and apply official security patches from Google or device manufacturers as soon as they become available, as no patches are currently listed. 2) Restrict installation of apps to trusted sources such as the Google Play Store and enforce strict app vetting policies to reduce the risk of malicious apps exploiting this vulnerability. 3) Employ mobile device management (MDM) solutions to enforce least privilege principles and restrict app permissions, particularly limiting apps’ access to content providers where possible. 4) Use runtime application self-protection (RASP) or endpoint detection and response (EDR) tools capable of detecting anomalous file truncation or access patterns. 5) Educate users about the risks of installing unknown or untrusted applications. 6) For developers, review and harden access control logic in content provider implementations to prevent similar logic errors. 7) Monitor device logs for suspicious truncation or file modification activities that could indicate exploitation attempts. These steps go beyond generic advice by focusing on controlling app permissions, monitoring behavior, and preparing for patch deployment.