Medium severity5.5NVD Advisory· Published Sep 14, 2026· Updated Sep 16, 2026
CVE-2026-84521
CVE-2026-84521
Description
A use after free issue was addressed with improved memory management. 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, visionOS 27. An app may be able to cause unexpected system termination.
Affected products
7cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*range: <26.7
- (no CPE)range: 26.7, 27
cpe: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, Tahoe 26.7
- Range: 26.7, 27
Patches
Vulnerability mechanics
References
6- support.apple.com/en-us/149034nvdRelease NotesVendor Advisory
- support.apple.com/en-us/149035nvdRelease NotesVendor Advisory
- support.apple.com/en-us/149038nvdRelease 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