CVE-2026-84487

Undergoing Analysis Undergoing Analysis - In Progress

Integer Overflow in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-15

Assigner: Apple Inc.

Description

An integer overflow was addressed with improved input validation. 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 file may result in disclosure of process memory.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-14

Last Modified

2026-09-15

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-04

NVD

CVE-2026-84487

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.7
apple	ipados	26.7
apple	ios	27
apple	ipados	27
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7
apple	tvos	27
apple	visionos	27
apple	watchos	27

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-190	The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

Executive Summary

This vulnerability is an integer overflow caused by insufficient input validation. It affects multiple Apple operating systems including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Processing a specially crafted file could lead to disclosure of process memory.

Detection Guidance

This vulnerability involves an integer overflow in Apple devices. Detection requires checking system versions against patched releases. For iOS/iPadOS, verify if the version is 26.7 or later, 27 or later, or macOS versions Golden Gate 27, Sequoia 15.8, Tahoe 26.7, tvOS 27, visionOS 27, or watchOS 27. No specific commands are provided in the context to detect this vulnerability directly.

Impact Analysis

An attacker could exploit this to read sensitive memory contents from your device. This might expose personal data, credentials, or other confidential information stored in memory during normal operation.

Compliance Impact

This vulnerability involves an integer overflow leading to potential disclosure of process memory. Such memory disclosure could expose sensitive data, which may impact compliance with GDPR (data protection) and HIPAA (health information privacy) by increasing the risk of unauthorized data exposure.

Mitigation Strategies

Update affected Apple devices to the latest patched versions: iOS 26.7 or later, iPadOS 26.7 or later, iOS 27 or later, iPadOS 27 or later, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27.

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