Samsungs December Security Patch Addresses Critical Phone Vulnerabilities

Samsung has released a major new security update for its devices. The December 2025 security patch is now rolling out to Galaxy phones and tablets. It addresses over five dozen security vulnerabilities discovered in recent months.

This patch is one of the most critical updates of the year. According to the official Samsung Security Bulletin, it includes fixes for 57 flaws in the core Android operating system provided by Google. The company has also patched 11 vulnerabilities unique to its own Galaxy software.

Details on the Patched Security Flaws and Risks

Six of the Android vulnerabilities are rated as critical. The remaining 51 are considered high-risk. These flaws could have allowed serious breaches of user data and device security.

Samsung’s own fixes target serious issues in key system components. One involved out-of-bounds reads in the fingerprint system software. Another was a flaw in the Dynamic Lockscreen that could let other apps access its files.

The patch also corrects a validation bug in Samsung’s radio interface layer. This bug could have allowed unintended memory writes. Additional fixes were made to the bootloader and image codec libraries to prevent data overwrites.

Update Rollout and Installation Guidance for Users

The rollout began in early December and will continue throughout the month. Samsung typically releases updates in phases, region by region and model by model. The previous month’s update was slower due to the concurrent One UI 8 launch.

Owners of eligible Galaxy devices should check for the update manually. To do this, go to Settings, then Software update, and tap Download and install. Installing updates promptly is the best defense against these security threats.

This comprehensive December 2025 security patch is essential for protecting your Samsung Galaxy device from newly discovered exploits. Users are strongly advised to install it as soon as it becomes available for their model.

A quick knowledge drop for you

Why is the December 2025 patch so important?

It fixes 68 total vulnerabilities, including six critical ones. These flaws could have let attackers access sensitive data or take control of device functions.

Which Samsung devices will receive this update?

The update will go to all Galaxy smartphones and tablets still within Samsung’s security update support window. This typically includes models released in the last three to four years.

How do I know if my phone has been updated?

Go to Settings > Software update > Last update. The installed security patch level should read “December 1, 2025” or later once the update is complete.

What happens if I don’t install the security patch?

Your device remains vulnerable to the specific exploits this patch fixes. This could leave your personal data, including passwords and financial information, at risk from malicious software.