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Samsung Pushes March Security Patch to Galaxy S25 and Recent Foldables as One UI 8.5 Nears Expansion

The release fixes 65 vulnerabilities, including eight rated critical.

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Overview

  • Samsung began rolling out the March 2026 security update in South Korea for the Galaxy S25 lineup, Galaxy Z Fold 7, and Galaxy Z Flip 7, with staged expansion to other regions expected.
  • The update later reached the Galaxy Z Fold 6 and Z Flip 6 in Korea, continuing Samsung’s phased distribution across recent flagship foldables.
  • Reported firmware builds include S93xNKSS8BZC1 for the S25 series (about 500MB), F966NKSS8AZC1 for the Z Fold 7, F766NKSS8AZC1 for the Z Flip 7, F956NKSS3CZC1 for the Z Fold 6, and F741NKSS3CZC1 for the Z Flip 6.
  • The patches deliver security fixes only with no new features or performance changes noted, addressing 60 Google issues and five Samsung vulnerabilities.
  • Stable One UI 8.5 files have been spotted on Samsung servers for select models and early beta builds surfaced for the Galaxy S24 series and Fan Edition phones, indicating beta expansion may be imminent.