CVE-2018-4386
CVSS v3
8.8
HIGH
EPSS Score
6.5 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.
Frequently asked questions
What is CVE-2018-4386?
Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.
Is CVE-2018-4386 actively exploited?
Active exploitation of CVE-2018-4386 has not been confirmed. Its EPSS score was 6.5% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-4386?
CVE-2018-4386 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2018-4386 affecting your environment?
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