An Android security alert has been issued due to a critical vulnerability that could potentially allow cybercriminals to bypass a phone’s lock screen. This flaw, discovered by the Donjon security team, poses a significant risk as attackers could gain access to sensitive data stored on the device within a minute.
The vulnerability, identified as CVE-2026-20435, impacts specific Android devices powered by MediaTek processors, which are commonly found in budget-friendly smartphones. Security experts have highlighted that this flaw enables attackers to extract encryption keys before the device fully boots, circumventing security measures like full-disk encryption and lock screen protection.
Researchers demonstrated the exploit by connecting a vulnerable phone to a laptop via USB, showcasing how they could retrieve the device’s PIN, decrypt its storage, and access confidential information swiftly. Malwarebytes emphasized that approximately one in four Android phones, particularly lower-priced models, are vulnerable to this exploit.
To mitigate the risk, users are advised to check their phone’s processor type in the Settings menu and ensure that any available security updates, including the fix provided by MediaTek, are promptly installed. Keeping devices up to date is crucial for safeguarding against potential security threats. Additionally, since this attack requires physical access to the device, maintaining possession of the phone and regular updates significantly reduces the risk.
For older devices that no longer receive updates, users are encouraged to exercise caution or consider upgrading to minimize vulnerability to such exploits. Taking proactive measures and staying informed about security updates are essential to protect personal data and maintain device security.