Executive brief
A memory handling vulnerability in macOS could allow a malicious application to crash the system or access sensitive kernel memory. This could lead to a total system shutdown or the exposure of protected system-level information. Users should update to the latest macOS versions to mitigate these risks.
Technical details
A memory handling vulnerability exists in the macOS kernel. A local malicious application can exploit this flaw to trigger a system crash (denial of service) or perform out-of-bounds reads to disclose sensitive kernel memory. The issue was addressed through improved memory management logic. Affected versions include macOS Sequoia prior to 15.7.8, macOS Sonoma prior to 14.8.8, and macOS Tahoe prior to 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: disclosed
- 2026-07-27: patched