CVE-2025-48643: Android Local Privilege Escalation via Provisioning Bypass

Technical summary

This vulnerability stems from inadequate input validation in multiple provisioning code paths within Android. The flaw allows a local, unprivileged process to bypass provisioning security checks and escalate to system privileges. Classified under CWE-20 (Improper Input Validation), the issue affects the core provisioning logic that manages device setup and credential handling. The attack surface is local only (no network component), and exploitation requires no user interaction or elevated starting privileges—only standard application-level access.

Business impact

Organizations deploying Android devices face significant risk from this vulnerability. A compromised or malicious application installed on an employee device can silently escalate privileges to gain root-level access without user awareness or additional infection stages. This threatens mobile device management (MDM) controls, data isolation, and the integrity of corporate-managed deployments. The lack of user interaction requirement means that even careful employees cannot prevent exploitation through behavioral caution alone.

Affected systems

Google Android is the affected platform. The vulnerability exists in multiple provisioning code locations, suggesting it may affect a range of Android versions. Consult the official Google security bulletin and your device manufacturer's advisory to determine which specific Android versions and device models require patches. Given the local nature of the exploit, any Android device with untrusted application installation capability is potentially at risk.

Exploitability

Exploitability is moderate to high in real-world conditions. An attacker must first achieve local code execution—typically by convincing a user to install a malicious app, though sideloading and supply-chain compromises are also possible vectors. Once an app runs with standard permissions, it can trigger the provisioning bypass without additional steps. The absence of user interaction requirements or elevated starting privileges makes this a post-compromise escalation threat rather than a direct remote attack. Threat actors targeting high-value devices or those used in sensitive roles would likely prioritize this flaw.

Remediation

Apply security patches from Google and your device manufacturer as soon as they become available. Check the official Android Security & Privacy Year in Review bulletin for CVE-2025-48643 patch availability. On affected devices, consider additional mitigations: enforce strict app installation policies to reduce the likelihood of malicious apps reaching the device, use mobile device management (MDM) solutions to remotely monitor and revoke access, and educate users on app download safety. Until patched, assume any untrusted application could escalate to full device compromise.

Patch guidance

Monitor Google's official security bulletins and your device manufacturer's security advisories for patch releases. Patches for privilege escalation flaws in provisioning code are typically delivered as monthly security updates. Once available, prioritize deployment to devices handling sensitive data or used by privileged users. Test patches in a controlled environment before broad rollout to catch any compatibility issues. Maintain an inventory of affected device models and their current Android versions to track patch coverage.

Detection guidance

Detection is challenging because exploitation occurs entirely within the provisioning subsystem with no network communication. Monitor system logs for unusual provisioning state changes, unexpected privilege escalation events, or modifications to provisioning-related configuration files. On managed devices, MDM solutions should track unexpected permission grants or system-level access changes. Behavioral indicators include a standard app attempting to interact with provisioning services or abnormal system calls from non-system processes. Forensic analysis of compromised devices should examine provisioning logs and installed application timestamps.

Why prioritize this

This vulnerability earns high priority due to its combination of local attack surface, no user interaction requirement, and severe impact (full device compromise). While exploitation requires prior app installation, the prevalence of sideloading, social engineering, and app store compromises means many devices remain at risk. Organizations with strict app policies and robust MDM controls face lower risk but should still patch promptly. The CVSS 7.8 score reflects the severity of the impact, and the lack of current KEV designation does not diminish the practical threat—patch as part of regular Android security update cycles.

Risk score, explained

The CVSS 3.1 score of 7.8 (HIGH) reflects a local-only attack vector with low complexity and no user interaction or elevated privileges needed for exploitation. The impact is severe across confidentiality, integrity, and availability—once exploited, an attacker gains complete system control. The score correctly emphasizes that while the initial infection vector (app installation) requires some user action, the escalation itself is automatic and unavoidable. Organizations should treat this as a critical privilege escalation that requires rapid patching.

Frequently asked questions