Samsung has initiated the rollout of its November security update for the Galaxy S26 series, expanding availability from South Korea to India, Europe, and other international markets. The firmware for the international Galaxy S26 Ultra is identified as S948BXXS6BZK1.
The update focuses exclusively on security, addressing 179 vulnerabilities in total. This figure includes 155 issues inherited from the Android platform and 24 bugs specific to Samsung software. Some of these vulnerabilities were classified as critical.
The patches cover key system components, including the bootloader, modems, Exynos hardware, SIM lock mechanisms, and various system applications. These fixes prevent potential unauthorized data writes and local code execution.
The update does not introduce new features or interface changes. The package size for the base Galaxy S26 in South Korea is approximately 510 MB, though this may vary by region and model. Users can check for the update via the device settings menu.
