Samsung has pushed the November 2026 security patch to the Galaxy S26, Galaxy S26+, Galaxy S26 Ultra, and Galaxy Z Fold 8 series — starting in South Korea. The update fixes 179 vulnerabilities: 20 critical, 141 high-severity, and 15 moderate. Of those, 155 patches come from Google’s Android security bulletin.
Samsung added 24 of its own, targeting Exynos chipsets, modems, bootloaders, SIM locks, and core apps. No new features are included. This is a pure security release, consistent with how Samsung handles monthly patches. It arrives just weeks after One UI 9 rolled out broadly and ahead of One UI 9.5, which is due in Q1 2027.
The Galaxy S26 Ultra firmware version is S942NKSS6BZK1. The update file for the base model is 510.10MB. Rollout outside South Korea begins imminently, Samsung typically expands such patches globally within days. Users can check for it manually via Settings > Software update > Check for updates.
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