CVE-2026-64778
Received Received - Intake

Improper Input Validation in Apple iOS and iPadOS

Vulnerability report for CVE-2026-64778, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-17

Last updated on: 2026-08-17

Assigner: Apple Inc.

Description

The issue was addressed with improved checks. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Visiting a maliciously crafted website may leak sensitive data.

CVSS Scores

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Probability:
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Meta Information

Published
2026-08-17
Last Modified
2026-08-17
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
apple ios 18.7.10
apple ipados 18.7.10
apple ios 26.6.1
apple ipados 26.6.1
apple macos_tahoe 26.6.2

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 involves a flaw in Apple's iOS, iPadOS, and macOS Tahoe systems where visiting a maliciously crafted website could lead to the leakage of sensitive data. The issue was addressed with improved checks in specific versions of these operating systems.

Detection Guidance

This vulnerability involves visiting a maliciously crafted website that may leak sensitive data. Detection primarily involves checking for unauthorized data exfiltration or unusual network activity. Ensure your system is updated to iOS 18.7.10, iPadOS 18.7.10, iOS 26.6.1, iPadOS 26.6.1, or macOS Tahoe 26.6.2 to mitigate the issue.

Impact Analysis

If exploited, this vulnerability could allow an attacker to access and leak sensitive information from your device by tricking you into visiting a malicious website. This could include personal data, login credentials, or other confidential information.

Compliance Impact

The provided CVE data does not specify how this vulnerability affects compliance with standards like GDPR or HIPAA. The issue involves sensitive data leakage from maliciously crafted websites, which could potentially impact data protection requirements under such regulations.

Mitigation Strategies

Update affected systems to the latest patched versions: iOS 18.7.10 or later, iPadOS 18.7.10 or later, iOS 26.6.1 or later, iPadOS 26.6.1 or later, and macOS Tahoe 26.6.2 or later. Avoid visiting untrusted websites until updates are applied.

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