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9.8
CVE-2026-64703: macOS: Malicious App Can Crash Your Computer
CVE-2026-64703 · published 2 months ago
Summary
A security issue in macOS allowed a malicious app to potentially crash your computer. This issue has been fixed in recent updates for macOS Sequoia, Sonoma, and Tahoe. To stay secure, make sure your operating system is up to date.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| apple | macos |
< 14.8.8 >= 14.0, < 14.8.8 >= 15.0, < 15.7.8 >= 26.0, < 26.6 |
Original advisory text
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause a denial-of-ser...
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause a denial-of-service.
References
- https://support.apple.com/en-us/128067 Release Notes Vendor Advisory
- https://support.apple.com/en-us/128071 Release Notes Vendor Advisory
- https://support.apple.com/en-us/128072 Release Notes Vendor Advisory
Severity
9.8
Critical
Exploitation
EPSS <1%
Type
CWE-416Use After Free
Timeline
Published27 Jul 2026
Updated29 Sep 2026
First seen27 Jul 2026
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