Quick answer: Samsung published the October 2026 security bulletin (SMR-OCT-2026) on October 6. It applies 45 Google CVEs, covers 4 Samsung Semiconductor CVEs and lists 27 Samsung SVE items, of which only 13 are described so far.
Samsung’s monthly security bulletin is the official list of what the latest patch fixes. The October 2026 one is out, so here’s what is in it without the jargon.
I read it on the Samsung Mobile Security page today. If you want the raw details, go straight to that page.
What is in SMR-OCT-2026
The bulletin has three parts. Each one is a different source of fixes.
Google Android fixes
Samsung applied 45 CVEs from the Android Security Bulletin. Nine are rated Critical, 33 High and 3 Moderate. Three more were already fixed in earlier updates, and one doesn’t apply to Samsung phones.
The bulletin lists the Critical ones by CVE number only, with no descriptions. That is normal for Google’s part of the list.
Samsung Semiconductor fixes
Four CVEs are in this group, and all four are rated High. They are CVE-2026-35494, CVE-2026-68993, CVE-2026-69043 and CVE-2026-69044. The bulletin doesn’t go into detail on them.
Samsung SVE items
SVE stands for Samsung Vulnerabilities and Exposures. The bulletin counts 27 of them this month, but only 13 are described (6 High and 7 Moderate). Samsung notes that some items can’t be disclosed yet.
The fixes worth knowing about
A few of the described SVE items stand out because of what they could allow.
- SVE-2026-1758 (CVE-2026-21114) is an out-of-bounds write in libsmkvextractor.so. It could allow local arbitrary code execution.
- SVE-2026-3021 (CVE-2026-21122) is another out-of-bounds write, this time in libsamsungtts.so, with the same possible result.
- SVE-2026-2881 (CVE-2026-21120) is a use-after-free bug in the WSM service. It could allow code execution with system privilege.
- SVE-2026-3972 (CVE-2026-21123) is an improper privilege management issue in Locksettings. It could expose data of a tied profile before the first time you enter your PIN or pattern.
- SVE-2026-3794 and SVE-2026-3829 (CVE-2026-21124 and CVE-2026-21125) are input validation flaws in the HEIF image decoder library.
“Local” means an attacker would need something running on the phone already, like a bad app or a crafted file. These are not the kind of bugs that hit you just because you are online. The descriptions I went through don’t mention active attacks either.
Still, I’d install the patch. The image decoder fixes are the sort of thing you want, since your phone opens HEIF photos all day.
When does your Galaxy get the October patch?
That depends on the model and your country. Samsung usually starts with flagships and then goes down to mid-range and older phones through the month.
We already have a few posts on the October rollouts, like the Galaxy S26 October update, the Galaxy Z Fold 8 and Flip 8 update and the Galaxy S26 FE update. To see which phones already have the latest patch, open the Samsung security update tracker.
How to check your patch level
- Open Settings.
- Go to About phone > Software information.
- Look at “Android security patch level”.
If the date is older than October, go to Settings > Software update > Download and install to check manually. If nothing shows up, this guide on a missing update explains the usual reasons.
FAQ
Is the October 2026 bulletin only for new phones?
No. The bulletin is the master list. Which phones get the patch depends on Samsung’s update schedule and your device’s support status. My post on the Samsung update policy explains who is still covered.
Why are some SVE items not described?
Samsung says some items can’t be disclosed yet. That often happens while fixes are still reaching more devices.
Do I need to do anything besides updating?
Not really. Install the update when it shows up, keep Google Play system updates on, and only install apps you trust.
Where can I read the official bulletin?
On the Samsung Mobile Security update page. Pick October 2026.
Final Words
That’s the October 2026 bulletin in short. A big pile of Google fixes, four chip-level ones from Samsung and a handful of SVE items that are worth patching for.
Has your Galaxy received the October patch yet? Tell me your model number and country in the comments and I’ll keep track.
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