CVE-2026-64771: Buffer Overflow

Published Jul 27, 2026
·
Updated

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.

Other sources

Accessibility. This issue was addressed through improved state management.

— Apple

Accounts Framework. This issue was addressed with improved data protection.

— Apple

Accounts. A parsing issue in the handling of directory paths was addressed with improved path validation.

— Apple

Accounts. An access issue was addressed with additional sandbox restrictions.

— Apple

afpfs. A buffer overflow was addressed with improved bounds checking.

— Apple

Affected Software

6 affected componentsFixes available
Apple visionOS<26.6
26.6
Apple tvOS<26.6
26.6
Apple iOS<26.6
26.6
Apple iPadOS<26.6
26.6
Apple macOS Tahoe<26.6
26.6
Apple macOS Sequoia<15.7.8
15.7.8

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 26.6
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 15.7.8

Event History

Jul 27, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Description
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
CVE Published
via MITRE·08:13 PM
Data Sourced
via MITRE·08:13 PM
DescriptionWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-64771?

CVE-2026-64771 is classified with high severity due to its potential impact on device security and stability.

2

How do I fix CVE-2026-64771?

To mitigate CVE-2026-64771, users should update their Apple devices to the latest software version provided by Apple.

3

What types of vulnerabilities are involved in CVE-2026-64771?

CVE-2026-64771 includes vulnerabilities such as buffer overflow, input validation issues, and race conditions.

4

Which Apple products are affected by CVE-2026-64771?

CVE-2026-64771 affects several Apple products including visionOS, tvOS, iOS, iPadOS, and macOS versions Tahoe and Sequoia.

5

When was CVE-2026-64771 published?

CVE-2026-64771 was published on July 27, 2026.

Company

Resources

Contact

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