A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote user may be able to cause unexpected system termination or corrupt kernel memory.
https://support.apple.com/en-us/126792
Source: Mitre, NVD
Published: 2026-03-25
Updated: 2026-03-25
Base Score: 9.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:C
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical