CVE-2026-64788
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27, watchOS 27....
- Published
- Aug 17, 2026
- Updated
- Sep 14, 2026
- Assigning CNA
- apple
- Evidence observed
- Sep 3, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:NLow · next 30 days
- Percentile
- 15.7%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
Sources
Proof-of-concept for CVE-2026-64788, a use-after-free in IOGPUFamily kernel extension on iOS 26.6, demonstrating exploitation via Metal texture creation and heap spraying.
Proof-of-concept for an out-of-bounds write in XNU's vfs_attr_pack_internal (getattrlist) on iOS 26.6, demonstrating kernel heap corruption and exploitation notes for PAC pointer forging.
Proof-of-concept for a fixed PAC diversifier bypass in the tmpfs setxattr handler on iOS 26.6, demonstrating reachability of the vulnerable signing path from userspace.
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