CVE-2026-28858

9.8 criticalEPSS 0.6%

Critical (9.8) in apple. EPSS 0.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2026-03-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:ipados
apple:iphone_os

References

https://support.apple.com/en-us/126792

Check your stack JSON