What is CVE-2026-28856?

CVE-2026-28856 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Improper Access Control. CVSS score: 4.6/10. Published 2026-03-25.

How severe is CVE-2026-28856?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Vulnerability in Apple iOS And Ipados

CVE-2026-28856

The issue was addressed with improved authentication. This issue is fixed in iOS 26.4 and iPadOS 26.4, visionOS 26.4, watchOS 26.4. An attacker with physical access to a locked device may be able to view sensitive user information.

EPSS: 0.003 (19.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-28856?: CVE-2026-28856 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Improper Access Control. CVSS score: 4.6/10. Published 2026-03-25.
How severe is CVE-2026-28856?: Medium severity. CVSS v3 base score is 4.6 out of 10.