A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted file may lead to unexpected process termination.
CVE-2026-86991
CVSS base score
7.5 (v3.1)
Severity
HIGH
Attack vector
Network
Weakness
CWE-120
Last modified
November 4, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
apple ipados
apple iphone os
apple macos
apple visionos
References
- support.apple.com Release Notes, Vendor Advisory
- support.apple.com Release Notes, Vendor Advisory
- support.apple.com Release Notes, Vendor Advisory
- support.apple.com Release Notes, Vendor Advisory
- support.apple.com Release Notes, Vendor Advisory
- support.apple.com Release Notes, Vendor Advisory