Description

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.

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References

Other References

https://support.apple.com/en-us/128067 https://support.apple.com/en-us/128071 https://support.apple.com/en-us/128072

Frequently Asked Questions

What is CVE-2026-64703? +

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.

How do I check if I'm vulnerable to CVE-2026-64703? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.