tvOS 26.1 Security Update

What tvOS 26.1 Fixes

tvOS 26.1, released November 3, 2025, fixes 31 vulnerabilities in 14 parts of the system, according to Apple's security advisory.

Apple does not say that any of them were exploited before the fix. That makes tvOS 26.1 a routine security update: worth installing soon, not an emergency.

It has since been superseded: the newest security release for tvOS 26 is tvOS 26.6, from July 27, 2026, which includes these fixes.

Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.

Which Devices Get tvOS 26.1

Apple lists tvOS 26.1 for: Apple TV HD and Apple TV 4K (all models).

How to Install tvOS 26.1

On the Apple TV, open Settings → System → Software Updates.

Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past tvOS 26.1 there is nothing to do.

Every Fix in tvOS 26.1

All 31 CVEs in Apple's advisory, the most serious kinds first. Each entry is the part of the system affected, Apple's description of the impact and the fix, and the CVE ID.

• Apple Neural Engine

  An app may be able to cause unexpected system termination or corrupt kernel memory

  The issue was addressed with improved memory handling.

  CVE-2025-43462

• Assets

  An app may be able to break out of its sandbox

  This issue was addressed with improved entitlements.

  CVE-2025-43407

• CloudKit

  An app may be able to break out of its sandbox

  This issue was addressed with improved validation of symlinks.

  CVE-2025-43448

• Kernel

  A malicious application may be able to cause unexpected system termination or write kernel memory

  A memory corruption issue was addressed with improved memory handling.

  CVE-2025-43520

• libxpc

  A sandboxed app may be able to observe system-wide network connections

  An access issue was addressed with additional sandbox restrictions.

  CVE-2025-43413

• AppleMobileFileIntegrity

  An app may be able to access protected user data

  This issue was addressed with improved validation of symlinks.

  CVE-2025-43379

• MallocStackLogging

  An app may be able to access sensitive user data

  An issue existed in the handling of environment variables. This issue was addressed with improved validation.

  CVE-2025-43294

• WebKit

  A malicious website may exfiltrate data cross-origin

  The issue was addressed with improved checks.

  CVE-2025-43480

• WebKit Canvas

  A website may exfiltrate image data cross-origin

  The issue was addressed with improved handling of caches.

  CVE-2025-43392

• CoreText

  Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory

  An out-of-bounds read was addressed with improved input validation.

  CVE-2025-43445

• FontParser

  Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2025-43400

• Kernel

  An app may be able to cause unexpected system termination

  The issue was addressed with improved memory handling.

  CVE-2025-43398

• Kernel

  A malicious application may cause unexpected changes in memory shared between processes

  A memory corruption issue was addressed with improved lock state checking.

  CVE-2025-43510

• Model I/O

  Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory

  An out-of-bounds access issue was addressed with improved bounds checking.

  CVE-2025-43386 CVE-2025-43385 CVE-2025-43384 CVE-2025-43383

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  This issue was addressed through improved state management.

  CVE-2025-43458 CVE-2025-43430 CVE-2025-43427

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  This issue was addressed with improved checks.

  CVE-2025-43443

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  The issue was addressed with improved memory handling.

  CVE-2025-43441 CVE-2025-43435 CVE-2025-43425

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  This issue was addressed with improved checks

  CVE-2025-43440

• WebKit

  Processing maliciously crafted web content may lead to memory corruption

  The issue was addressed with improved memory handling.

  CVE-2025-43433 CVE-2025-43431

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  A use-after-free issue was addressed with improved memory management.

  CVE-2025-43432

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  A buffer overflow was addressed with improved bounds checking.

  CVE-2025-43429

• CoreServices

  An app may be able to enumerate a user's installed apps

  A permissions issue was addressed with additional restrictions.

  CVE-2025-43436

• Installer

  An app may be able to fingerprint the user

  A permissions issue was addressed with additional restrictions.

  CVE-2025-43444

tvOS 26 Security Release History

tvOS 26.1 in context: the security releases Apple has published for tvOS 26, newest first, with the number of fixes each carried.

The Same Fixes Elsewhere

Apple ships most fixes to every platform that shares the code, and to older versions still under support. These releases close at least one of the same CVEs:

Frequently Asked Questions