CVE-2026-84489

Analyzed Analyzed - Analysis Complete

Buffer Overflow in iOS and iPadOS

Publication date: 2026-09-14

Last updated on: 2026-09-16

Assigner: Apple Inc.

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. An app may be able to cause a denial of service.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-14

Last Modified

2026-09-16

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-03

NVD

CVE-2026-84489

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 14.0 (inc) to 14.8.8 (exc)
apple	macos	From 15.0 (inc) to 15.7.8 (exc)
apple	ipados	to 18.7.10 (exc)
apple	iphone_os	to 18.7.10 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-120	The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

Executive Summary

This is a buffer overflow vulnerability caused by insufficient bounds checking. An application could exploit this to cause a denial of service by crashing the system or app.

Detection Guidance

This vulnerability is specific to Apple operating systems and requires checking installed versions against patched releases. For iOS/iPadOS, verify if your device is running iOS 18.7.10, iPadOS 18.7.10, iOS 27, or iPadOS 27 or later. For macOS, check if you have Golden Gate 27, Sequoia 15.7.8, or Sonoma 14.8.8 or newer installed.

Impact Analysis

An attacker could potentially crash your device or an app running on it, leading to loss of functionality until the device is rebooted or the app is restarted.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves a buffer overflow leading to potential denial of service, but no details are given about data exposure or privacy implications that would affect such regulations.

Mitigation Strategies

Update affected Apple devices to the latest patched versions: iOS 18.7.10 or later, iPadOS 18.7.10 or later, iOS 27 or later, iPadOS 27 or later, macOS Golden Gate 27 or later, macOS Sequoia 15.7.8 or later, macOS Sonoma 14.8.8 or later.

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