Samsung Galaxy S24 Gets November Security Update in Global Rollout

Samsung has begun its global rollout of the November 2025 security update for the Galaxy S24 series. The update is now available for users in the United States and Europe. This follows its initial release in South Korea just one week ago. The patch addresses several dozen security vulnerabilities to protect user devices.

This is the first security update since the phones were upgraded to Android 16 and One UI 8.0. According to the Android Security Bulletin, the update provides critical protections for the operating system and Samsung’s software.

Firmware Details and Installation Guide

The new firmware is identified by version number ending in CYK2 for both US and European models. The download size is a little over 450 megabytes. Users can manually check for the update through their phone’s Settings menu.

To install, navigate to Settings > Software update and tap Download and install. The process ensures devices are safeguarded against the latest known threats. This update is rolling out for the standard Galaxy S24, S24+, and the S24 Ultra.

Enhanced Security for Exynos and Snapdragon Chipsets

The November patch fixes approximately three dozen security flaws. These vulnerabilities affected both the Android OS and Samsung’s One UI software layer. The patch also includes specific fixes for the Exynos 2400 chipset powering most global models.

This consistent update schedule underscores Samsung’s commitment to long-term device security. The Galaxy S24 series will continue receiving regular security patches. The next major software upgrade, One UI 8.5, is expected to debut with the Galaxy S26 series in 2026.

The global expansion of the November security patch reinforces Samsung’s proactive approach to mobile security. This Galaxy S24 update is a critical step in maintaining user trust and device integrity. Owners are advised to install the patch promptly to ensure their smartphones remain secure.

Info at your fingertips

What does the November security update include?

It includes the November 2025 Android security patch. This update fixes around three dozen vulnerabilities in Android and Samsung’s own software.

How can I download the update on my Galaxy S24?

Go to your phone’s Settings, then select Software update. Finally, tap on the Download and install option to check for and apply the update.

Is this update available for all Galaxy S24 models?

Yes, the update is rolling out for the Galaxy S24, S24+, and S24 Ultra. The release began in Korea and is now live in the US and Europe.

Does this update bring any new features?

No, this is primarily a security maintenance release. It focuses on patching vulnerabilities and does not introduce new user-facing features or changes.

What is the firmware version for this update?

The firmware version for this release ends in CYK2 for compatible devices in the United States and European markets. The file size is over 450 MB.