Vulnerability Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An app may be able to disclose kernel memory.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 27.0 |
| Apple | Iphone Os | < 27.0 |
| Apple | Macos | < 27.0 |
| Apple | Tvos | < 27.0 |
| Apple | Visionos | < 27.0 |
| Apple | Watchos | < 27.0 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/149034Release NotesVendor Advisory
- https://support.apple.com/en-us/149035Release NotesVendor Advisory
- https://support.apple.com/en-us/149036Release NotesVendor Advisory
- https://support.apple.com/en-us/149037Release NotesVendor Advisory
- https://support.apple.com/en-us/149038Release NotesVendor Advisory
FAQ
What is CVE-2026-86903?
CVE-2026-86903 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An app may be able to disclose ...
How severe is CVE-2026-86903?
CVE-2026-86903 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-86903?
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.