What you need to know
- The March 2023 security patch has started rolling out for Galaxy S23, S22, and S21 series smartphones.
- In total, this patch contains approximately 50 vulnerability fixes.
- Galaxy phones in Europe are starting to receive it, and other regions will definitely receive it as the week progresses.
As usual, Samsung leads the way when it comes to delivering monthly security updates to their phones. As spotted by SamMobile, his OEM in South Korea appears to be rolling out his March 2023 security patch to some Galaxy devices. The patch seems to be slowly spreading around the world, as the Galaxy S23 Ultra, S23+ and S23 have started receiving the patch in Europe.
Galaxy S23 series owners will now see firmware version S91xBXXS1AWBM According to Samsung’s patch notes, this includes fixes for 50 vulnerabilities. The patch is about 351MB and as stated by SamMobile, 39 of these fixes were brought by Google and 11 by Samsung itself.
The Galaxy S22 series has also started applying March 2023 security patches in European countries.Those users should find an updated version S90xBXXU3CWBE.
The Galaxy S21 series also received a March update in Europe.Detected that the device is receiving a firmware update version G99xBXXS6EWBBMost recently, we learned that the Galaxy S20 series received the March patch.
Among the fixes in this patch for Galaxy phones and tablets is a solution for users with Exynos 2100 processors and running Android 11, 12 and 13. Prior to this patch, there was a vulnerability that allowed hackers to access memory. hindrance. Another critical issue being patched prevents a hacker from remotely powering off a user’s Galaxy device using his AutoPowerOnOffConfirmDialog feature.
Another fix has been implemented to resolve the Bluetooth access control vulnerability. Hopefully it removes the ability for hackers to send files without proper permissions.
The March 2023 security patch is currently spotted in European countries, but should start moving to other regions as the week progresses. Galaxy devices should get the patch automatically, but if not, you can always check manually. Settings > Software Update > Download & Install.
These same models and many more received the One UI 5.1 update last month, along with the February 2023 patch. It includes a number of new software features first released on the S23 series. However, the March update doesn’t seem to add new features or address ongoing bugs.

To hold your Galaxy, you need style and performance to back it up. Fortunately, the S23 Ultra has both. Samsung’s latest Ultra flagship phone lasts at least two days on a single charge and features his powerful 200MP main shooter to relive life’s best moments.