CVE-2026-84564

Received Received - Intake

Uninitialized Memory Disclosure in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

An uninitialized memory issue was addressed with improved memory initialization. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted image may result in disclosure of process memory.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-09-15

AI Q&A

2026-09-15

EPSS Evaluated

N/A

NVD

CVE-2026-84564

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.7
apple	ipad_os	26.7
apple	ios	27
apple	ipad_os	27
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7
apple	tv_os	27
apple	vision_os	27
apple	watch_os	27

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is an uninitialized memory issue where memory is not properly initialized before use. Processing a maliciously crafted image could lead to disclosure of process memory.

Detection Guidance

This vulnerability involves uninitialized memory in Apple devices when processing maliciously crafted images. Detection requires checking if affected Apple software versions are installed. Use system update commands like 'softwareupdate --list' on macOS or 'Settings > General > Software Update' on iOS/iPadOS to verify versions.

Impact Analysis

An attacker could exploit this to read sensitive data from your device's memory, potentially accessing private information like passwords or personal files.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating privacy requirements under GDPR and HIPAA if sensitive data is leaked.

Mitigation Strategies

Immediately update all Apple devices to the latest versions: iOS 26.7 or 27, iPadOS 26.7 or 27, macOS Golden Gate 27, Sequoia 15.8, Tahoe 26.7, tvOS 27, visionOS 27, or watchOS 27. Disable automatic image processing where possible until updates are applied.

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