CVE-2018-4386: n/a iOS, tvOS, watchOS, Safari, iTunes for Windows,…

CVE-2018-4386: Multiple memory corruption issues were addressed with improved memory handling.

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 05:11 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2018-4386 is an Apple memory-corruption issue fixed across iOS, tvOS, watchOS, Safari, iTunes for Windows, and iCloud for Windows. Memory corruption can allow crashes or potentially unsafe code execution, but the provided sources do not give CVSS, CWE, or detailed attack conditions. Exposure is most likely on legacy Apple devices, Safari installations, and Windows systems still running old iTunes or iCloud for Windows versions. Modern, fully updated systems should not be affected according to the listed fixed versions. Prioritize remediation where legacy Apple clients or Windows iTunes/iCloud deployments remain in use. The available evidence does not confirm active exploitation, but memory-corruption flaws in client software can become high-impact when exposed to untrusted content. Mitigation focus: Upgrade iOS to 12.1 or later where supported.; Upgrade tvOS to 12.1 or later where supported.; Upgrade watchOS to 5.1 or later where supported..

Prepared: Jun 6, 2026, 21:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 3, 2019, 17:43 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://support.apple.com/kb/HT209192CVE reference · x_refsource_MISC
https://support.apple.com/kb/HT209195CVE reference · x_refsource_MISC
https://support.apple.com/kb/HT209194CVE reference · x_refsource_MISC
https://support.apple.com/kb/HT209197CVE reference · x_refsource_MISC
https://support.apple.com/kb/HT209198CVE reference · x_refsource_MISC
https://support.apple.com/kb/HT209196CVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/aiOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for WindowsVersions prior to: iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8Listed

Weakness

CWE details

No CWE listed

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