Integer Overflow in Apple iOS and macOS Systems

Publication date: 2026-09-14

Last updated on: 2026-09-14

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. An app may be able to cause unexpected system termination.

CVSS Scores

EPSS Scores

Probability:
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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-2026-65408

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is an integer overflow caused by insufficient input validation. It allows an app to trigger unexpected system termination by exploiting the overflow issue.

Impact Analysis

An attacker could exploit this to crash your device unexpectedly. This may lead to data loss or disrupt normal device operations if the system terminates improperly.

Mitigation Strategies

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

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