The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1, macOS Sequoia 15.1. An app may be able to corrupt coprocessor memory.
https://support.apple.com/en-us/121564
https://support.apple.com/en-us/121563
Source: Mitre, NVD
Published: 2026-01-16
Updated: 2026-04-02
Base Score: 6.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00013