CVE-2026-84548 Apple macOS - Integer Overflow

Apple macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7 contain an out-of-bounds read caused by integer overflow due to insufficient input validation, letting attackers cause memory corruption, exploit requires crafted malicious document.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Integer Overflow
Impact
Out Of Bounds Rw, Information Disclosure
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-190

Vendor fix

Update to macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs