Vulnerability Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and 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. An attacker may be able to cause unexpected app termination.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 26.6 |
| Apple | Iphone Os | < 26.6 |
| Apple | Macos | >= 14.0, < 14.8.8 |
| Apple | Tvos | < 26.6 |
| Apple | Visionos | < 26.6 |
| Apple | Watchos | < 26.6 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/128066Release NotesVendor Advisory
- https://support.apple.com/en-us/128067Release NotesVendor Advisory
- https://support.apple.com/en-us/128068Release NotesVendor Advisory
- https://support.apple.com/en-us/128069Release NotesVendor Advisory
- https://support.apple.com/en-us/128070Release NotesVendor Advisory
- https://support.apple.com/en-us/128071Release NotesVendor Advisory
- https://support.apple.com/en-us/128072Release NotesVendor Advisory
FAQ
What is CVE-2026-64739?
CVE-2026-64739 is a vulnerability with a CVSS score of 8.8 (HIGH). An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visio...
How severe is CVE-2026-64739?
CVE-2026-64739 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64739?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Visionos.