CVE-2026-28856
Authentication Bypass in iOS and iPadOS Allows Data Exposure
Publication date: 2026-03-25
Last updated on: 2026-03-26
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | ipados | to 26.4 (exc) |
| apple | iphone_os | to 26.4 (exc) |
| apple | visionos | to 26.4 (exc) |
| apple | watchos | to 26.4 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-284 | The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves a security flaw in certain Apple operating systems where an attacker with physical access to a locked device may be able to view sensitive user information. The issue was addressed by improving authentication mechanisms and fixed in iOS 26.4, iPadOS 26.4, visionOS 26.4, and watchOS 26.4.
How can this vulnerability impact me? :
If exploited, this vulnerability could allow an attacker who has physical access to your locked Apple device to view sensitive user information without authorization. This could lead to privacy breaches and potential misuse of personal data stored on the device.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your Apple devices to iOS 26.4, iPadOS 26.4, visionOS 26.4, or watchOS 26.4 as applicable.
Since the vulnerability requires physical access to a locked device, ensure that devices are kept secure and not left unattended.