AppleCVE-2026-64727
Apple macOS: type confusion
Critical9.8CVE-2026-64727 · Published Jul 27, 2026 · updated Jul 29, 2026
A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.6, tvOS 26.6. An app may be able to cause unexpected system termination.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| macOS Product | < 26.6 | 26.6 |
| tvOS Product | < 26.6 | 26.6 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-843
More Apple advisories
All Apple| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 27 | Apple iOS and iPadOS: out-of-bounds write | Critical9.8 | 18.7.10+3 more |
| Jul 27 | Apple iOS and iPadOS: out-of-bounds write | Critical9.8 | 18.7.10+3 more |
| Jul 27 | Apple iOS and iPadOS: buffer overflow | Critical9.8 | 18.7.10+2 more |
| Jul 27 | Apple iOS and iPadOS: out-of-bounds write | Critical9.8 | 18.7.10+2 more |
| Jul 27 | Apple iOS and iPadOS: integer overflow | Critical9.8 | 18.7.10+3 more |
| Jul 27 | A memory initialization issue was addressed with improved memory handling | Critical9.8 | 26.6+2 more |