CVE-2026-20637

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-20637
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An app may be able to cause unexpected system termination.

6.2 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://support.apple.com/en-us/126346 Release Notes Vendor Advisory
https://support.apple.com/en-us/126348 Release Notes Vendor Advisory
https://support.apple.com/en-us/126351 Release Notes Vendor Advisory
https://support.apple.com/en-us/126352 Release Notes Vendor Advisory
https://support.apple.com/en-us/126353 Release Notes Vendor Advisory
https://support.apple.com/en-us/126793 Release Notes Vendor Advisory
https://support.apple.com/en-us/126795 Release Notes Vendor Advisory
https://support.apple.com/en-us/126796 Release Notes Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
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

25 Mar 2026, 18:37

Type Values Removed Values Added
CPE cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
References () https://support.apple.com/en-us/126346 - () https://support.apple.com/en-us/126346 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126348 - () https://support.apple.com/en-us/126348 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126351 - () https://support.apple.com/en-us/126351 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126352 - () https://support.apple.com/en-us/126352 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126353 - () https://support.apple.com/en-us/126353 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126793 - () https://support.apple.com/en-us/126793 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126795 - () https://support.apple.com/en-us/126795 - Release Notes, Vendor Advisory
References () https://support.apple.com/en-us/126796 - () https://support.apple.com/en-us/126796 - Release Notes, Vendor Advisory
First Time Apple watchos
Apple tvos
Apple iphone Os
Apple visionos
Apple ipados
Apple
Apple macos

25 Mar 2026, 16:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.2
CWE CWE-416

25 Mar 2026, 01:17

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-25 01:17

Updated : 2026-03-25 20:51

NVD link : CVE-2026-20637

Mitre link : CVE-2026-20637

CVE.ORG link : CVE-2026-20637

JSON object : View

Products Affected

apple

  • watchos
  • iphone_os
  • visionos
  • tvos
  • ipados
  • macos
CWE
CWE-416

Use After Free