Vulnerability Description
A use after free issue was addressed with improved memory management. 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 app may be able to cause unexpected system termination.
CVSS Score
CRITICAL
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-2026-43799?
CVE-2026-43799 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A use after free issue was addressed with improved memory management. 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 ...
How severe is CVE-2026-43799?
CVE-2026-43799 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-43799?
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.