Integer Overflow in macOS Golden Gate via Malicious NFS Server

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 macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious NFS server may cause unexpected system termination or corrupt kernel memory.

CVSS Scores

EPSS Scores

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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-2026-84544

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	27
apple	macos	15.8
apple	macos	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. When a system connects to a malicious NFS server, it may lead to unexpected system termination or corruption of kernel memory due to the overflow.

Impact Analysis

If exploited, this vulnerability could cause your system to crash unexpectedly or allow kernel memory corruption, potentially leading to data loss or unauthorized access. It specifically requires interaction with a malicious NFS server.

Mitigation Strategies

Update your macOS to version 27 (Golden Gate), 15.8 (Sequoia), or 26.7 (Tahoe) or later to address the integer overflow issue. Avoid connecting to untrusted NFS servers until the update is applied.

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