High severity7.8NVD Advisory· Published Sep 14, 2026· Updated Sep 18, 2026
CVE-2026-84566
CVE-2026-84566
Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A local attacker may be able to cause unexpected system termination or corrupt kernel memory.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=15.0,<15.8
- (no CPE)range: Golden Gate 27, Sequoia 15.8, 26.7
- Range: 26.7, 27
Patches
Vulnerability mechanics
References
5- support.apple.com/en-us/149034nvdRelease NotesVendor Advisory
- support.apple.com/en-us/149035nvdRelease NotesVendor Advisory
- support.apple.com/en-us/149041nvdRelease NotesVendor Advisory
- support.apple.com/en-us/149042nvdRelease NotesVendor Advisory
- support.apple.com/en-us/149043nvdRelease NotesVendor Advisory
News mentions
2- macOS Tahoe: 25 Vulnerabilities Patched in Same-Day Apple Security UpdateVypr Intelligence · Sep 14, 2026
- Apple Updates Everything, (Mon, Sep 14th)SANS Internet Storm Center · Sep 14, 2026