CVE-2026-28858
Critical · 9.8CVSS
9.8
EPSS
0.6%
Published
Mar 25, 2026
CISA due date
—
The record
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote user may be able to cause unexpected system termination or corrupt kernel memory.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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