CVE-2026-84533
Undergoing Analysis Undergoing Analysis - In Progress

Man-in-the-Middle Attack in Apple iOS and macOS

Vulnerability report for CVE-2026-84533, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

A cryptographic issue was addressed with improved integrity checks. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, watchOS 27. An attacker in a privileged network position may be able to modify network traffic.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-10-06
AI Q&A
2026-09-15
EPSS Evaluated
2026-10-04
NVD

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
apple ios 27
apple ipad_os 27
apple macos_golden_gate 27
apple tv_os 27
apple watch_os 27

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This vulnerability is a cryptographic issue where improved integrity checks were implemented to prevent unauthorized modification of network traffic. It affects multiple Apple operating systems including iOS, iPadOS, macOS, tvOS, and watchOS versions 27. An attacker with a privileged network position could exploit this to alter network communications.

Detection Guidance

This vulnerability involves a cryptographic integrity issue that may allow network traffic modification. Detection requires monitoring for unexpected network traffic changes or integrity violations. Use network monitoring tools like Wireshark to inspect traffic for anomalies and verify cryptographic checksums. Check system logs for unusual network activity or failed integrity checks.

Impact Analysis

If exploited, this vulnerability could allow an attacker to intercept and modify your network traffic. This might lead to unauthorized access to sensitive data, such as login credentials or personal information, potentially resulting in identity theft or data breaches.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with standards like GDPR or HIPAA. The vulnerability involves a cryptographic integrity issue allowing network traffic modification, which could potentially expose sensitive data if exploited. However, no explicit compliance implications are mentioned in the given context.

Mitigation Strategies

Update affected Apple devices to iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, or watchOS 27 to address the cryptographic integrity issue.

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