CVE-2026-28819
MEDIUM severity · CVSS 5.4 · Out-of-bounds write
5.4CVSS MEDIUM
Summary
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to execute arbitrary code with kernel privileges.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactLow
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)6%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.