Memory Handling Issues in Apple Products
CVE-2026-20644

6.5MEDIUM

Key Information:

Vendor

Apple
Status
Safari
Mac OS
Visionos
iOS And iPad OS
Vendor
CVE Published:
11 February 2026

What is CVE-2026-20644?

This vulnerability arises from improper memory handling in multiple Apple products, which can be exploited through specially crafted web content. When such content is processed, it may lead to unexpected crashes of the involved processes, potentially impacting user experience and system stability. This issue has been addressed in the latest versions of macOS, iOS, iPadOS, visionOS, and Safari, emphasizing the importance of keeping software up to date.

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Affected Version(s)

iOS and iPadOS < 26.3

iOS and iPadOS < 18.7

macOS < 26.3

References

https://support.apple.com/en-us/126354
https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126353

CVSS V3.1

Score:
6.5
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

JSON
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