Vulnerability Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 26.5 |
| Apple | Iphone Os | < 26.5 |
| Apple | Macos | >= 26.0, < 26.5 |
| Apple | Tvos | < 26.5 |
| Apple | Watchos | < 26.5 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/127110Release NotesVendor Advisory
- https://support.apple.com/en-us/127115Release NotesVendor Advisory
- https://support.apple.com/en-us/127118Release NotesVendor Advisory
- https://support.apple.com/en-us/127119Release NotesVendor Advisory
FAQ
What is CVE-2026-43655?
CVE-2026-43655 is a vulnerability with a CVSS score of 7.3 (HIGH). An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected sy...
How severe is CVE-2026-43655?
CVE-2026-43655 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43655?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Watchos.