High severity8.8NVD Advisory· Published Sep 14, 2026· Updated Sep 17, 2026

CVE-2026-84512

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory.

Affected products

Apple Inc./macOS
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Range: >=15.0,<15.8
Apple Inc./macOS Golden Gatellm-fuzzy
Range: before 27
Apple Inc./macOS Sequoiallm-fuzzy
Range: before 15.8
Apple Inc./macOS Tahoellm-fuzzy
Range: before 26.7

Patches

Vulnerability mechanics

References

support.apple.com/en-us/149035nvdRelease NotesVendor Advisory
support.apple.com/en-us/149042nvdRelease NotesVendor Advisory
support.apple.com/en-us/149043nvdRelease NotesVendor Advisory

News mentions

macOS Sequoia: 25 Vulnerabilities Patched in Same-Day Apple Security Update
Vypr Intelligence · Sep 14, 2026
Apple Updates Everything, (Mon, Sep 14th)
SANS Internet Storm Center · Sep 14, 2026

cvss	0.572
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000