Use-After-Free Vulnerability in Apple Products
CVE-2025-43438

4.3MEDIUM

Key Information:

Vendor

Apple
Status
Safari
Mac OS
Visionos
Watch OS
Vendor
CVE Published:
4 November 2025

What is CVE-2025-43438?

A use-after-free vulnerability has been identified in multiple Apple products, including Safari, that arises from improper memory management. When processing maliciously crafted web content, this flaw can lead to unexpected crashes, potentially exposing users to further risks. Apple has implemented fixes in watchOS 26.1, iOS 26.1, iPadOS 26.1, Safari 26.1, and visionOS 26.1 to enhance security and performance.

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Deploy the Patch

Affected Version(s)

iOS and iPadOS < 26.1

iOS and iPadOS < 18.7

macOS < 26.1

References

https://support.apple.com/en-us/125640
https://support.apple.com/en-us/125634
https://support.apple.com/en-us/125638

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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