CVE-2026-20634
Memory Disclosure via Malicious Image Processing in Apple OS Components
Publication date: 2026-02-11
Last updated on: 2026-04-02
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | tvos | to 26.3 (exc) |
| apple | visionos | to 26.3 (exc) |
| apple | watchos | 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 | macos | From 15.0 (inc) to 15.7.4 (exc) |
| apple | macos | From 26.0 (inc) to 26.3 (exc) |
| apple | macos | From 14.0 (inc) to 14.8.4 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves improper memory handling when processing images. Specifically, processing a maliciously crafted image may lead to the disclosure of process memory.
The issue has been addressed by improving memory handling in various Apple operating systems including watchOS, tvOS, macOS (Tahoe, Sonoma, Sequoia), iOS, iPadOS, and visionOS.
How can this vulnerability impact me? :
An attacker could exploit this vulnerability by providing a specially crafted image that, when processed, could cause sensitive process memory to be disclosed.
This could potentially lead to exposure of sensitive information stored in memory, which might be used for further attacks or unauthorized data access.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your Apple devices to the fixed versions of the operating systems as soon as possible.
- Update watchOS to version 26.3 or later.
- Update tvOS to version 26.3 or later.
- Update macOS Tahoe to version 26.3 or later.
- Update macOS Sonoma to version 14.8.4 or later.
- Update macOS Sequoia to version 15.7.4 or later.
- Update iOS and iPadOS to version 18.7.5 or later.
- Update visionOS to version 26.3 or later.
- Update iOS and iPadOS to version 26.3 or later.