tvOS 26.4 — APPLE-SA-126797

Summary

tvOS 26.4 Apple TV HD and Apple TV 4K (all models) 24 Mar 2026 watchOS 5.3.10 This update has no published CVE entries. Apple Watch Series 1, Series 2, Series 3, and Series 4 24 Mar 2026 watchOS 8.8.2 This update has no published CVE entries. Apple Watch Series 3, Series 4, Series 5, Series 6, Series 7, and SE 24 Mar 2026 watchOS 26.4 <p class="gb-par

Product

tvOS 26.4

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source

Related advisories