CVE-2026-84635

Undergoing Analysis Undergoing Analysis - In Progress

Unexpected Process Termination in Safari and iOS

Publication date: 2026-09-14

Last updated on: 2026-09-18

Assigner: Apple Inc.

Description

A logic issue was addressed with improved state management. This issue is fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to an unexpected process termination.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-14

Last Modified

2026-09-18

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-03

NVD

CVE-2026-84635

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ipados	to 27.0 (exc)
apple	iphone_os	to 27.0 (exc)
apple	macos	to 27.0 (exc)
apple	visionos	to 27.0 (exc)
apple	watchos	to 27.0 (exc)
apple	tvos	to 27.0 (exc)
apple	safari	to 27.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a logic issue caused by improper state management in Apple software. It affects multiple platforms including Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. The flaw could allow malicious web content to trigger an unexpected termination of the affected process.

Detection Guidance

This vulnerability is specific to Apple software versions prior to Safari 27, iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, and watchOS 27. Detection involves checking installed software versions against these thresholds. For macOS, use 'sw_vers' or 'system_profiler SPSoftwareDataType'. For iOS/iPadOS, check Settings > General > About. For Safari, open Safari and check version in About Safari.

Impact Analysis

If exploited, this vulnerability could cause applications like Safari or other web browsers to crash unexpectedly when processing malicious web content. This may lead to denial of service or potential data loss if unsaved work is affected.

Compliance Impact

The provided CVE data does not specify how this vulnerability affects compliance with standards like GDPR or HIPAA. The issue involves unexpected process termination due to maliciously crafted web content, but no direct impact on compliance is mentioned.

Mitigation Strategies

Update affected Apple software to the latest versions (Safari 27, iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27). Enable automatic updates where possible. Avoid visiting untrusted websites or opening suspicious links until updates are applied.

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