CVE-2026-28991

CVSS 7.5 HIGHEPSS 0.4%CWE-125

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Apple · iOS and iPadOS Apple · macOS Apple · tvOS Apple · visionOS Apple · watchOS

References

https://support.apple.com/en-us/127110 https://support.apple.com/en-us/127115 https://support.apple.com/en-us/127118 https://support.apple.com/en-us/127119 https://support.apple.com/en-us/127120