Galaxy S24 lineup is getting the November 2025 security update

After a relatively quiet couple of weeks on the security update front, Samsung is rolling out new patches for multiple flagship Galaxy smartphones, including the Galaxy S24 lineup.

As usual, the update has gone live first in South Korea and should expand to more regions in the coming days. It comes with firmware version ending in CYK2 and weighs around 300 MB, which is pretty small.

That's not surprising, though, as the update doesn't include anything but security fixes. The November 2025 security patch fixes around three dozen vulnerabilities affecting both Android and Samsung’s proprietary software. A few of those security flaws impact devices powered by select Exynos chips, including the Exynos 2400 that drives the Galaxy S24 and S24+ in most markets.

Naturally, this update is built on top of One UI 8 (Android 16), the second major OS upgrade for the Galaxy S24 lineup. Samsung isn’t slowing down, though. In the first half of next year, the 2024 flagship series will receive the One UI 8.5 update, which is already in development for multiple Galaxy devices.

To download the latest update on your Galaxy S24, S24+, S24 Ultra, or S24 FE, navigate to the Settings > Software update menu on the phone and tap Download and install.

Abhijeet Mishra - Editor-in-Chief

[email protected]

First Samsung device: SGH-D500

Abhijeet's writing career started with guides for custom firmware for Samsung devices (including the original Galaxy S), and he moved to SamMobile in mid-2013 and worked up the ranks to Editor-in-chief. In addition to phones and mobile devices, his interests include gaming on both PC and console, PC hardware, and spending countless hours on YouTube watching videos on tech, movies, games, politics, and internet dramas.

Firmware Phone Galaxy S24 Galaxy S24 FE Galaxy S24 Plus Galaxy S24 Ultra November 2025 Security Patch

Galaxy S24 lineup is getting a new software update, see what it brings

Abhijeet Mishra - Editor-in-Chief

[email protected]

First Samsung device: SGH-D500