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CVE Record

CVE-2018-4392: 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-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

Apple fixed multiple memory corruption issues in older Apple platform and Windows companion software releases. Affected versions are earlier than iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, and iCloud for Windows 7.8. The bundle provides no CVSS score, severity, or confirmed exploitation claim.

Executive priority

Set priority around legacy exposure. This is old and not KEV-listed in the bundle, but affected products are broad. Organizations should verify no pre-fix Apple software remains in production or unmanaged endpoint populations.

Technical view

CVE-2018-4392 describes multiple memory corruption issues addressed through improved memory handling. Public affected scope includes iOS, tvOS, watchOS, Safari, iTunes for Windows, and iCloud for Windows before the listed fixed versions. The bundle does not identify component internals, CWE, attack vector, or impact beyond memory corruption.

Likely exposure

Exposure is most likely on unmanaged or legacy endpoints still running pre-fix Apple operating systems, Safari, iTunes for Windows, or iCloud for Windows. Modern, fully updated fleets are unlikely to remain exposed, but asset verification is required.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of active exploitation. Do not treat this as known exploited based on the provided evidence. Memory corruption can be serious, but exploitability and impact are not documented here.

Researcher notes

The provided record is sparse: no CVSS, CWE, vector, exploit status, or component-level details. Analysis should stay bounded to Apple’s stated memory corruption fix and affected-version list. Avoid inferring exploit chains or specific impacts without additional vendor evidence.

Mitigation direction

  • Upgrade iOS to 12.1 or later where applicable.
  • Upgrade tvOS to 12.1 or later where applicable.
  • Upgrade watchOS to 5.1 or later where applicable.
  • Upgrade Safari to 12.0.1 or later.
  • Upgrade iTunes for Windows to 12.9.1 or later.
  • Upgrade iCloud for Windows to 7.8 or later.

Validation and detection

  • Inventory Apple devices and Windows systems with Apple software installed.
  • Confirm installed versions are at or above the fixed releases.
  • Check patch management records for the relevant Apple updates.
  • Review exceptions for unsupported or unmanaged legacy devices.
  • Monitor Apple advisory pages for any additional guidance.
Prepared
Confidence
medium
Sources
8

Public sources used

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2018-4392 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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

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

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.