CVE-2026-64704 Memory corruption in macOS
A type confusion flaw in macOS allows an app to cause unexpected system termination, requiring users to apply the latest security patches.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-64704?
CVE-2026-64704 is a critical memory corruption vulnerability in Apple Macos, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A type confusion issue was addressed with improved memory handling. 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 unexpected system termination.
Weakness: CWE-843
Which versions are affected by CVE-2026-64704?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-64704?
No fix has been published for CVE-2026-64704 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-64704 being exploited?
There is no known exploitation of CVE-2026-64704 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-m868-q9qr-wvmh.