CVE-2026-84497

Undergoing Analysis Undergoing Analysis - In Progress

Buffer Overflow in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

A buffer overflow was addressed with improved size 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. Opening a maliciously crafted file may lead to unexpected process termination.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-04

NVD

CVE-2026-84497

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a buffer overflow caused by insufficient size validation. It occurs when a maliciously crafted file is opened, potentially leading to unexpected process termination. The issue was addressed in multiple Apple operating systems with specific updates.

Detection Guidance

This vulnerability is specific to Apple operating systems and relates to buffer overflow in file handling. Detection requires checking system and application logs for crashes or errors when opening files, particularly after applying updates to iOS 26.7+, iPadOS 26.7+, macOS 27+, or related versions. Monitor for unexpected process terminations or malfunctions when handling files.

Impact Analysis

If exploited, this vulnerability could allow an attacker to cause an application to crash or terminate unexpectedly by opening a specially crafted file. This may lead to denial of service or potential further exploitation depending on the affected application.

Compliance Impact

The provided CVE data does not specify how this vulnerability affects compliance with standards like GDPR or HIPAA. The issue involves a buffer overflow that could lead to process termination, but no direct impact on regulatory compliance is mentioned.

Mitigation Strategies

Update affected Apple devices to the latest patched versions: iOS 26.7 or later, iPadOS 26.7 or later, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, or visionOS 27. Avoid opening untrusted or maliciously crafted files.

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