AppleCVE-2026-64783
Apple Safari: use after free
High8.8CVE-2026-64783 · Published Jul 27, 2026 · updated Jul 28, 2026
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Safari Product | < 26.6 | 26.6 |
| iOS and iPadOS Product | < 26.6 | 26.6 |
| macOS Product | < 26.6 | 26.6 |
| visionOS Product | < 26.6 | 26.6 |
| watchOS Product | < 26.6 | 26.6 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-416
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 |