critical9.8
CVE-2026-64691
A buffer overflow was addressed with improved size validation.
Impact
A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | Macos | from 26.0 before 26.6 |