AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

AppleCVE-2026-64783

Apple Safari: use after free

Apple

CVE-2026-64783 · Published Jul 27, 2026 · updated Jul 28, 2026

High8.8
Fix: upgrade to 26.6 or later (3 fixed versions below)
Apple advisory

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

PackageAffectedFixed in
Safari
Product
< 26.626.6
iOS and iPadOS
Product
< 26.626.6
macOS
Product
< 26.626.6
visionOS
Product
< 26.626.6
watchOS
Product
< 26.626.6
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
Critical 9.8Jul 27Apple iOS and iPadOS: out-of-bounds writeCVE-2026-64769fixed in 18.7.10 +3Critical 9.8Jul 27Apple iOS and iPadOS: out-of-bounds writeCVE-2026-64770fixed in 18.7.10 +3Critical 9.8Jul 27Apple iOS and iPadOS: buffer overflowCVE-2026-64771fixed in 18.7.10 +2Critical 9.8Jul 27Apple iOS and iPadOS: out-of-bounds writeCVE-2026-64772fixed in 18.7.10 +2Critical 9.8Jul 27Apple iOS and iPadOS: integer overflowCVE-2026-64774fixed in 18.7.10 +3Critical 9.8Jul 27A memory initialization issue was addressed with improved memory handlingCVE-2026-64775fixed in 26.6 +2