Vulnerability Description
A logic issue was addressed with improved checks. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, watchOS 26.3. An app may be able to break out of its sandbox.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 26.3 |
| Apple | Iphone Os | < 26.3 |
| Apple | Macos | < 14.8.4 |
| Apple | Watchos | < 26.3 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/126346Release NotesVendor Advisory
- https://support.apple.com/en-us/126348Release NotesVendor Advisory
- https://support.apple.com/en-us/126349Release NotesVendor Advisory
- https://support.apple.com/en-us/126350Release NotesVendor Advisory
- https://support.apple.com/en-us/126352Release NotesVendor Advisory
FAQ
What is CVE-2026-20667?
CVE-2026-20667 is a vulnerability with a CVSS score of 8.8 (HIGH). A logic issue was addressed with improved checks. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, watchOS 26.3. An app may be able to brea...
How severe is CVE-2026-20667?
CVE-2026-20667 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-2026-20667?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Watchos.