Google has officially released the April 2025 Android security update, and it’s not just a routine patch. The update resolves two high-risk kernel vulnerabilities that have already been exploited in the wild, along with more than 60 additional security issues across various Android components.
Two Zero-Day Exploits Fixed
The spotlight of this update is on CVE-2024-53150 and CVE-2024-53197, two kernel-level vulnerabilities in the ALSA: usb-audio component. Initially patched in the Linux kernel in December 2024, these flaws are now being actively addressed in Android.
- Google confirms that these vulnerabilities “may be under limited, targeted exploitation”.
- Security researchers believe both flaws are part of a broader exploit chain used to extract data from locked devices via USB.
In fact, in February 2025, Amnesty International reported that CVE-2024-53197 was actively exploited by Cellebrite’s forensic tools to extract sensitive data from the phone of a Serbian student activist. The tool also leveraged additional flaws (CVE-2024-53104 and CVE-2024-50302), which were patched in earlier Android updates this year.
While CVE-2024-53150 hasn’t yet been linked to active exploitation, GrapheneOS developers suggest it may be part of the same vulnerability cluster used by Cellebrite, making it a critical risk.
More Than 60 Bugs Resolved
Beyond the two kernel flaws, the April 2025 Android patch addresses approximately 60 other vulnerabilities, with significant fixes across:
- Framework and System components
- Project Mainline modules
- SoC vendors like Qualcomm, MediaTek, and Arm
- GPU drivers from Imagination Technologies
Most Critical Issue:
- CVE-2025-26416: A critical privilege escalation vulnerability in the System component, affecting Android 13, 14, and 15.
- It enables remote escalation of privileges without user interaction or extra permissions.
- Fixed in patch level 2025-04-01, which includes 28 fixes (evenly split between System and Framework).
Patch Levels and What’s Covered
2025-04-01 Patch Level
- Fixes 28 vulnerabilities
- Targets issues in System and Framework
- Includes 3 critical bugs
2025-04-05 Patch Level
- Addresses 31 vulnerabilities in:
- Kernel components
- MediaTek and Qualcomm firmware
- Arm drivers
- Imagination Technologies GPU stack
Android Automotive & Wear OS: No Platform-Specific Fixes
Google confirmed that Android Automotive OS and Wear OS did not receive any dedicated security fixes this month. However, they still benefit from general Android security improvements included in the broader patch.
Update Now: Your Privacy Depends On It
With active exploitation confirmed and forensic tools already weaponizing these flaws, updating your device is critical. Users should aim to install the 2025-04-05 security patch level to ensure they’re fully protected against all known vulnerabilities addressed this month.
To check your patch level, go to:
📲 Settings > About Phone > Android Version > Security Patch Level
Final Thoughts
The April 2025 update reinforces how Android’s open architecture can be both a strength and a security challenge. As mobile threats evolve and digital forensics tools push boundaries, staying updated isn’t just best practice—it’s essential to protecting your data, identity, and privacy.
Have questions about CVEs or Android patching best practices? Drop them in the comments!