An improper input validation flaw in Android versions 13 through 16 permits local attackers to bypass user profile boundaries and achieve unauthorized privilege escalation.

This vulnerability involves improper input validation in multiple locations within the Android framework, specifically concerning forwarded intents. The flaw allows an attacker with local, low-privileged access to bypass profile boundaries and achieve elevation of privilege without requiring user interaction.

The ability for a local attacker to escalate privileges poses a significant security risk, as it allows for unauthorized access to sensitive application data and system resources. Given the CVSS score of 7.8, this vulnerability is classified as High severity, indicating a substantial threat to data confidentiality, integrity, and system availability. Successful exploitation could lead to full system compromise from a standard user context, undermining the fundamental isolation mechanisms of the Android operating system.

Immediate Action: Apply the December 2025 Android security updates provided by Google or your specific device manufacturer immediately.

Proactive Monitoring: Security teams should monitor device logs for suspicious activity related to intent resolution or unexpected privilege changes within the Android framework.

Compensating Controls: Ensure that all installed applications are sourced from trusted app stores and maintain strict device management policies to limit the installation of untrusted or potentially malicious local software.

Public Exploit Available: Unknown

Due to the severity of this privilege escalation flaw, organizations should prioritize the deployment of the December 2025 security bulletin across all managed Android assets. Administrators must ensure that devices running Android 13 through 16 are updated as soon as the vendor firmware becomes available to mitigate the risk of local unauthorized access.