Galaxy Tab S11 series gets November 2026 security update

TL;DR

Samsung is rolling out the November 2026 security update for the Galaxy Tab S11 and Tab S11 Ultra in South Korea.

The patch fixes 179 vulnerabilities, and firmware versions for cellular models are X736NKOSACZK3 and X936NKOSACZK3.

The update should reach other countries soon, and users can check for it in Settings > Software update.

The Galaxy Tab S11 and the Galaxy Tab S11 Ultra units in Samsung’s home country, South Korea, are getting a new software update. These updates bring the November 2026 security patch, which addresses 179 vulnerabilities present in the previous firmware.

The updates for the cellular variants of the Galaxy Tab S11 and the Galaxy Tab S11 Ultra have firmware versions X736NKOSACZK3 and X936NKOSACZK3, respectively. The updates for non-cellular and global variants should also end with CZK3.

The brand should release these updates in other countries over the next few days. You can get the November 2026 security patch on your Galaxy Tab S11 series by going to Settings > Software update > Check for updates.

Speaking of updates, Samsung seems to be working hard on developing its next custom Android interface, One UI 9.5. While the Galaxy Tab S11 series is eligible to get it, there’s no information on when the brand will open the new software’s beta program or release its stable build for the two tablets.

Abid Iqbal Shaik - Writer

First Samsung device: Galaxy S II

I’m a computer science engineer living in Hyderabad, India, who has a keen interest in automobiles and consumer electronics. My journalism career kicked off in 2017 with MySmartPrice where I wrote news, features, buying guides, and explanatory articles about technology among other things, and reviewed many products, including smartphones, tablets, laptops, PC components, smartwatches, audio devices, wearables, and smart home products. Since then, I have worked for 91Mobiles, Apple, and Onsitego, before finally landing on SamMobile.

Firmware Phone Galaxy Tab S11 Galaxy Tab S11 Ultra Korea November 2026 Security Patch South Korea