macOS Sequoia 15.7.7 Security Update

What macOS Sequoia 15.7.7 Fixes

macOS Sequoia 15.7.7, released May 11, 2026, fixes 47 vulnerabilities in 32 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 macOS Sequoia 15.7.7 a routine security update: worth installing soon, not an emergency.

It has since been superseded: the newest security release for macOS Sequoia is macOS Sequoia 15.8.2, from October 26, 2026, which includes these fixes.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 macOS Sequoia 15.7.7

Apple lists macOS Sequoia 15.7.7 for: macOS Sequoia.

How to Install macOS Sequoia 15.7.7

On the Mac, open System Settings → General → Software Update. Macs that cannot run the newest macOS are offered the update for their own version there.

Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past macOS Sequoia 15.7.7 there is nothing to do.

Every Fix in macOS Sequoia 15.7.7

All 47 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.

• Wi-Fi

  An app may be able to execute arbitrary code with kernel privileges

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

  CVE-2026-28819

• CUPS

  An app may be able to gain root privileges

  A parsing issue in the handling of directory paths was addressed with improved path validation.

  CVE-2026-28915

• GPU Drivers

  A malicious app may be able to break out of its sandbox

  A logging issue was addressed with improved data redaction.

  CVE-2026-28923

• HFS

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

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-64705 CVE-2026-28925

• Icons

  An app may be able to break out of its sandbox

  An access issue was addressed with additional sandbox restrictions.

  CVE-2025-43524

• Installer

  A malicious app may be able to break out of its sandbox

  A permissions issue was addressed with additional restrictions.

  CVE-2026-28978

• IOHIDFamily

  An app may be able to determine kernel memory layout

  A logging issue was addressed with improved data redaction.

  CVE-2026-28943

• Kernel

  An app may be able to disclose kernel memory

  The issue was addressed with improved memory handling.

  CVE-2026-43654

• Kernel

  A local user may be able to cause unexpected system termination or read kernel memory

  A buffer overflow was addressed with improved input validation.

  CVE-2026-28897

• Kernel

  An app may be able to gain root privileges

  An authorization issue was addressed with improved state management.

  CVE-2026-28951

• Kernel

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

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

  CVE-2026-28972

• mDNSResponder

  A remote attacker may be able to cause unexpected system termination or corrupt kernel memory

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

  CVE-2026-43668

• PackageKit

  An app may be able to gain root privileges

  A permissions issue was addressed with additional restrictions.

  CVE-2026-28840

• StorageKit

  An app may be able to gain root privileges

  A consistency issue was addressed with improved state handling.

  CVE-2026-28919

• Wi-Fi

  An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Wi-Fi packets

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

  CVE-2026-28994

• Accessibility

  An attacker with physical access may be able to access sensitive user data during iPhone Mirroring

  This issue was addressed through improved state management.

  CVE-2026-64732

• CoreMedia

  An app may be able to access private information

  This issue was addressed through improved state management.

  CVE-2026-28922

• FileProvider

  An app may be able to access sensitive user data

  A race condition was addressed with additional validation.

  CVE-2026-43659

• Kernel

  A maliciously crafted disk image may bypass Gatekeeper checks

  A file quarantine bypass was addressed with additional checks.

  CVE-2026-28954

• Kernel

  An app may be able to leak sensitive kernel state

  A logging issue was addressed with improved data redaction.

  CVE-2026-28987

• Networking

  An attacker may be able to track users through their IP address

  This issue was addressed through improved state management.

  CVE-2026-28906

• Shortcuts

  An app may be able to access user-sensitive data

  This issue was addressed by adding an additional prompt for user consent.

  CVE-2026-28993

• Storage

  An app may be able to access sensitive user data

  A race condition was addressed with additional validation.

  CVE-2026-28996

• Sync Services

  An app may be able to access Contacts without user consent

  A race condition was addressed with improved handling of symbolic links.

  CVE-2026-28924

• TV App

  An app may be able to observe unprotected user data

  A path handling issue was addressed with improved logic.

  CVE-2026-39871

• zlib

  Visiting a maliciously crafted website may leak sensitive data

  An information leakage was addressed with additional validation.

  CVE-2026-28920

• APFS

  An app may be able to cause unexpected system termination

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-28959

• AppleJPEG

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

  A memory corruption issue was addressed with improved input validation.

  CVE-2026-28956

• ImageIO

  Processing a maliciously crafted file may lead to unexpected app termination

  The issue was addressed with improved bounds checks.

  CVE-2026-28977

• ImageIO

  Processing a maliciously crafted image may corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-28990

• IOHIDFamily

  An attacker may be able to cause unexpected app termination

  A memory corruption vulnerability was addressed with improved locking.

  CVE-2026-28992

• IOKit

  An app may be able to cause unexpected system termination

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

  CVE-2026-28969

• Kernel

  An app may be able to cause unexpected system termination

  An integer overflow was addressed with improved input validation.

  CVE-2026-28952

• Kernel

  An app may be able to cause unexpected system termination

  A race condition was addressed with additional validation.

  CVE-2026-28986

• mDNSResponder

  An attacker on the local network may be able to cause a denial-of-service

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

  CVE-2026-43666

• Model I/O

  Processing a maliciously crafted image may corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-28940

• Model I/O

  Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents

  The issue was addressed with improved checks.

  CVE-2026-28941

• Quick Look

  Parsing a maliciously crafted file may lead to an unexpected app termination

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

  CVE-2026-43656

• SceneKit

  Processing a maliciously crafted image may corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-39870

• SceneKit

  A remote attacker may be able to cause unexpected app termination

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-28846

• SMB

  A remote attacker may be able to cause unexpected system termination

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-28848

• Spotlight

  An app may be able to cause a denial-of-service

  This issue was addressed with improved checks to prevent unauthorized actions.

  CVE-2026-28974

• Audio

  Processing an audio stream in a maliciously crafted media file may terminate the process

  The issue was addressed with improved memory handling.

  CVE-2026-39869

• Crash Reporter

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

  A privacy issue was addressed by removing sensitive data.

  CVE-2026-28878

• Kernel

  An app may be able to modify protected parts of the file system

  A denial of service issue was addressed by removing the vulnerable code.

  CVE-2026-28908

• Mail Drafts

  Replying to an email could display remote images in Mail in Lockdown Mode

  A logic issue was addressed with improved checks.

  CVE-2026-28929

macOS Sequoia Security Release History

macOS Sequoia 15.7.7 in context: the security releases Apple has published for macOS Sequoia, 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