AppleCVE-2026-64718
Apple Safari: use after free
Medium5.5CVE-2026-64718 · Published Jul 27, 2026 · updated Sep 14, 2026
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, Safari 27, iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, visionOS 27, 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 |
| < 27 | 27 | |
| iOS and iPadOS Product | < 26.6 | 26.6 |
| < 26.7 | 26.7 | |
| < 27 | 27 | |
| macOS Product | < 26.6 | 26.6 |
| < 27 | 27 | |
| tvOS Product | < 26.6 | 26.6 |
| visionOS Product | < 26.6 | 26.6 |
| < 27 | 27 | |
| watchOS Product | < 26.6 | 26.6 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-416
- www.cve.org/CVERecord?id=CVE-2026-64718
- nvd.nist.gov/vuln/detail/CVE-2026-64718
- support.apple.com/en-us/128066
- support.apple.com/en-us/128067
- support.apple.com/en-us/128068
- support.apple.com/en-us/128069
- support.apple.com/en-us/128070
- support.apple.com/en-us/128073
- support.apple.com/en-us/149034
- support.apple.com/en-us/149035
- support.apple.com/en-us/149038
- support.apple.com/en-us/149039
- support.apple.com/en-us/149041
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 |