CVE-2018-4430

Name: CVE-2018-4430
Creator: NVD / NIST
Published: 2019-04-03T18:29:15.47+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.30%

Last modified Jun 17, 2026

CVE-2018-4430 is a vulnerability of currently unknown severity. A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management. This issue affected versions prior to iOS 12.1.1.

Metrics

EPSS Probability

0.30%

21.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 12.1.1

References

https://support.apple.com/kb/HT209340Vendor Advisory
https://support.apple.com/kb/HT209340Vendor Advisory

Timeline

Published: Apr 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4430?

A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management. This issue affected versions prior to iOS 12.1.1.

How severe is CVE-2018-4430?

Severity scoring for CVE-2018-4430 is pending analysis. The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4430?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-4430?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST