CVE-2026-84539 An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Tahoe 26.7.2. An app may be able to cause unexpected system termination.
CriticalCVSS 9.8
EPSS 0.52%
- Published
- Updated
- Exploit status
- No public exploit known
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Tahoe 26.7.2. An app may be able to cause unexpected system termination.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple macos | < 26.7.2 | 26.7.2 |
| apple macos | < 27 | 27 |
References
- support.apple.com release-notes vendor-advisory
- support.apple.com release-notes vendor-advisory