CVE-2026-64700
A memory management flaw in Apple operating systems could let a malicious app crash the device. The issue was fixed in recent OS releases. Users should update to the latest version to avoid the problem.
An official fix is available, so this entry is kept for 30 days and then removed automatically.
Who is affected
Apple iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. The typical user is anyone running these OS versions on iPhone, iPad, Mac, Apple TV, Apple Vision, or Apple Watch.
Real-world impact
An attacker could trigger a crash that terminates the operating system, potentially causing data loss or denial of service.
Why this severity
The CVSS score of 9.8 reflects that the flaw can be exploited remotely without authentication, with no user interaction, and can completely compromise confidentiality, integrity, and availability.
What to do about it
- 01Upgrade to iOS 26.6 or later.
- 02Upgrade to iPadOS 26.6 or later.
- 03Upgrade to macOS Sequoia 15.7.8 or later.
- 04Upgrade to macOS Sonoma 14.8.8 or later.
- 05Upgrade to macOS Tahoe 26.6 or later.
- 06Upgrade to tvOS 26.6 or later.
- 07Upgrade to visionOS 26.6 or later.
- 08Upgrade to watchOS 26.6 or later.
NVD-referenced vendor advisory
Timeline
- Jul 27, 2026 · 3d agoPublishedDisclosed and added to the National Vulnerability Database.
- Jul 28, 2026 · 2d agoOfficial fix availableA vendor patch or mitigation now exists — see the remediation steps above.
How it’s attacked
References & advisories
- support.apple.com/en-us/128066release notesvendor advisory
- support.apple.com/en-us/128067release notesvendor advisory
- support.apple.com/en-us/128068release notesvendor advisory
- support.apple.com/en-us/128069release notesvendor advisory
- support.apple.com/en-us/128070release notesvendor advisory
- support.apple.com/en-us/128071release notesvendor advisory
- support.apple.com/en-us/128072release notesvendor advisory