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CVE Record

CVE-2018-4284: A type confusion issue was addressed with improved memory handling.

A type confusion issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-4284 is an Apple type confusion memory-handling flaw fixed in 2018 updates. The provided sources identify affected Apple operating systems, Safari, iTunes for Windows, and iCloud for Windows. Business urgency depends on whether any legacy versions remain deployed.

Executive priority

Prioritize remediation if legacy Apple software is still present. This is not KEV-listed in the provided evidence, but type confusion memory flaws can be serious and old unsupported endpoints increase operational risk.

Technical view

Apple addressed a type confusion issue with improved memory handling. Affected versions are prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, and iCloud for Windows 7.6. The bundle provides no CVSS, CWE, component, or exploit details.

Likely exposure

Exposure is most likely in legacy Apple devices, Safari installations, or Windows hosts running old iTunes or iCloud versions below the fixed releases.

Exploitation context

The provided bundle does not show CISA KEV listing or active exploitation. It also does not provide public exploit details, exploitability conditions, or proof-of-concept information.

Researcher notes

Evidence is limited to Apple affected-version statements and a generic type confusion description. Do not assume a specific vulnerable component, trigger path, impact class, or exploit status without additional vendor or primary-source evidence.

Mitigation direction

  • Upgrade affected Apple products to the listed fixed versions or later.
  • Inventory legacy iOS, tvOS, watchOS, Safari, iTunes, and iCloud installations.
  • Prioritize unsupported or internet-facing user endpoints for replacement or upgrade.
  • Check Apple advisories for any environment-specific guidance.

Validation and detection

  • Confirm installed versions against the fixed-version thresholds.
  • Review endpoint management data for obsolete Apple software on Windows hosts.
  • Verify mobile device management compliance for iOS, tvOS, and watchOS versions.
  • Document exceptions where devices cannot be upgraded.
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.

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CVE-2018-4284 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 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6Listed
Weakness

CWE details

No CWE listed

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