An input validation issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously crafted image may lead to unexpected process termination.
CVE-2026-86959
CVSS base score
4.3 (v3.1)
Severity
MEDIUM
Attack vector
Network
Weakness
CWE-20
Last modified
October 30, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L