Authentication Bypass Vulnerability in Apple iOS and iPadOS Devices
CVE-2026-28856

4.6MEDIUM

Key Information:

Vendor

Apple
Status
iOS And iPad OS
Visionos
Watch OS
Vendor
CVE Published:
25 March 2026

What is CVE-2026-28856?

A vulnerability exists in Apple’s iOS and iPadOS, where an attacker with physical access to a locked device may gain unauthorized access to sensitive user information. This issue has been resolved with enhancements in authentication protocols in versions 26.4 of iOS, iPadOS, visionOS, and watchOS.

Affected Version(s)

iOS and iPadOS 0 < 26.4

visionOS 0 < 26.4

watchOS 0 < 26.4

References

https://support.apple.com/en-us/126792
https://support.apple.com/en-us/126798
https://support.apple.com/en-us/126799

CVSS V3.1

Score:
4.6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.