CVE-2026-84517

Undergoing Analysis Undergoing Analysis - In Progress

Integer Overflow in macOS Golden Gate 27 Leads to System Crash

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 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

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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

2026-10-03

NVD

CVE-2026-84517

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7

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 allows an application to trigger an unexpected system termination by exploiting this flaw.

Detection Guidance

This CVE describes an integer overflow issue in Apple macOS versions. Detection requires checking if your system is running an affected macOS version. Use the command 'sw_vers' to check your macOS version. Affected versions are Golden Gate 27, Sequoia 15.8, and Tahoe 26.7. If your version is older than these, the system is vulnerable.

Impact Analysis

An attacker could exploit this to cause an app or system to crash unexpectedly. This may lead to data loss or denial of service if critical processes are terminated.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves an integer overflow addressed with improved input validation, which may cause unexpected system termination but lacks details on data exposure or privacy implications.

Mitigation Strategies

Update to the latest versions of macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 to address the integer overflow issue.

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