CVE-2026-84523

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-84523
An out-of-bounds write issue was addressed with improved bounds checking. 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, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or write kernel memory.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://support.apple.com/en-us/149034 Release Notes Vendor Advisory
https://support.apple.com/en-us/149035 Release Notes Vendor Advisory
https://support.apple.com/en-us/149036 Release Notes Vendor Advisory
https://support.apple.com/en-us/149037 Release Notes Vendor Advisory
https://support.apple.com/en-us/149038 Release Notes Vendor Advisory
https://support.apple.com/en-us/149041 Release Notes Vendor Advisory
https://support.apple.com/en-us/149042 Release Notes Vendor Advisory
https://support.apple.com/en-us/149043 Release Notes Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
History

16 Sep 2026, 18:26

Type Values Removed Values Added
CPE cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
First Time Apple watchos
Apple visionos
Apple tvos
Apple iphone Os
Apple macos
Apple ipados
Apple
References () https://support.apple.com/en-us/149034 - () https://support.apple.com/en-us/149034 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/149035 - () https://support.apple.com/en-us/149035 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/149036 - () https://support.apple.com/en-us/149036 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/149037 - () https://support.apple.com/en-us/149037 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/149038 - () https://support.apple.com/en-us/149038 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/149041 - () https://support.apple.com/en-us/149041 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/149042 - () https://support.apple.com/en-us/149042 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/149043 - () https://support.apple.com/en-us/149043 - Release Notes, Vendor Advisory
Information

Published : 2026-09-14 21:17

Updated : 2026-09-16 18:26

NVD link : CVE-2026-84523

Mitre link : CVE-2026-84523

CVE.ORG link : CVE-2026-84523

JSON object : View

Products Affected

apple

  • macos
  • iphone_os
  • watchos
  • ipados
  • tvos
  • visionos
CWE
CWE-787

Out-of-bounds Write