Information disclosure in Apple Iphone OS

CVE-2018-4431

A memory initialization issue was addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.

Vulnerability class: Information Disclosure

EPSS: 0.007 (50.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-4431?
CVE-2018-4431 is a medium-severity vulnerability in Apple Iphone OS, classified under Information Disclosure. CVSS score: 5.5/10. Published 2019-04-03.
How severe is CVE-2018-4431?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2018-4431 known to be exploited?
6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.