An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27. Mounting a maliciously crafted exFAT volume may cause unexpected system termination or kernel memory disclosure.
https://support.apple.com/en-us/149035
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-77865
Source: Mitre, NVD
Published: 2026-09-14
Updated: 2026-09-18
Base Score: 6.2
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:C
Severity: Medium
Base Score: 7.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Severity: High
EPSS: 0.0017