High severity7.5NVD Advisory· Published May 11, 2026· Updated May 13, 2026
CVE-2026-28991
CVE-2026-28991
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, visionOS 26.5, watchOS 26.5. An app may be able to cause a denial-of-service.
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- support.apple.com/en-us/127110nvdRelease NotesVendor Advisory
- support.apple.com/en-us/127115nvdRelease NotesVendor Advisory
- support.apple.com/en-us/127118nvdRelease NotesVendor Advisory
- support.apple.com/en-us/127119nvdRelease NotesVendor Advisory
- support.apple.com/en-us/127120nvdRelease NotesVendor Advisory
News mentions
1- Apple Patches Everything, (Mon, May 11th)SANS Internet Storm Center · May 11, 2026