CVE-2026-20652
Modified Modified - Updated After Analysis

Memory Handling Vulnerability in Apple OS Causes Remote DoS

Publication date: 2026-02-11

Last updated on: 2026-06-30

Assigner: Apple Inc.

Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A remote attacker may be able to cause a denial-of-service.

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Meta Information

Published
2026-02-11
Last Modified
2026-06-30
Generated
2026-07-06
AI Q&A
2026-02-12
EPSS Evaluated
2026-07-04
NVD
CVE-2026-20652
EUVD
EUVD-2026-6705

Affected Vendors & Products

Showing 7 associated CPEs
Vendor Product Version / Range
apple macos to 26.3 (exc)
apple visionos to 26.3 (exc)
apple ipados to 18.7.5 (exc)
apple ipados From 26.0 (inc) to 26.3 (exc)
apple iphone_os to 18.7.5 (exc)
apple iphone_os From 26.0 (inc) to 26.3 (exc)
apple safari to 26.3 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.

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Executive Summary

This vulnerability involves improper memory handling in certain Apple operating systems and Safari. It has been addressed by improving memory management in updates to macOS Tahoe, iOS, iPadOS, visionOS, and Safari. A remote attacker could exploit this issue to cause a denial-of-service condition.

Impact Analysis

The primary impact of this vulnerability is that a remote attacker may be able to cause a denial-of-service, potentially disrupting the normal operation of affected Apple devices or Safari browser.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

The issue was addressed with improved memory handling and is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, and Safari 26.3.

To mitigate this vulnerability, you should update your Apple devices and software to these fixed versions as soon as possible.

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