Use After Free Vulnerability in Apple iOS and macOS Products
CVE-2026-20637

6.2MEDIUM

Key Information:

Vendor

Apple
Status
iOS And iPad OS
Mac OS
TV OS
Visionos
Vendor
CVE Published:
25 March 2026

What is CVE-2026-20637?

A use after free vulnerability exists in certain Apple operating systems, which may allow an application to cause unexpected system termination due to improper memory management. This vulnerability has been addressed in updates for iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, ensuring improved stability and security for users.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

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Deploy the Patch

Affected Version(s)

iOS and iPadOS 0 < 18.7.7

iOS and iPadOS 0 < 26.3

macOS 0 < 14.8.5

References

https://support.apple.com/en-us/126346
https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126351

CVSS V3.1

Score:
6.2
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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