Executive brief
A memory handling vulnerability in macOS could allow a remote user to cause a system crash or corrupt sensitive kernel memory. This affects the core operating system used on Apple computers, potentially leading to service disruptions or unauthorized access to system-level data. Users should update to the latest versions of macOS Sequoia, Sonoma, or Tahoe to resolve this issue.
Technical details
A memory handling vulnerability exists in the macOS kernel that can be triggered by a remote attacker. The flaw allows for unexpected system termination (Denial of Service) or the corruption of kernel memory, which could potentially lead to arbitrary code execution with kernel privileges. Apple addressed the issue by improving memory handling logic. The vulnerability is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Affected products
- Apple macOS Sequoia Before 15.7.8
- Apple macOS Sonoma Before 14.8.8
- Apple macOS Tahoe Before 26.6
Timeline
- 2026-07-27: advisory
- 2026-07-27: disclosed
- 2026-07-27: patched