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CVE Record

CVE-2018-4383: A memory corruption issue was addressed with improved state management.

A memory corruption issue was addressed with improved state management. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

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 a memory corruption flaw affecting older iOS, macOS, tvOS, and watchOS releases. The public record does not describe the vulnerable component, attack path, business impact, or severity score, so urgency should be driven by whether any Apple devices remain below the fixed versions.

Executive priority

Medium operational priority if legacy Apple devices exist; lower if fleet patch compliance is strong. The record lacks severity and exploitation evidence, but memory corruption issues can be security-relevant, so unresolved outdated devices should not remain unmanaged.

Technical view

CVE-2018-4383 is described as a memory corruption issue addressed through improved state management. Sources list affected versions as prior to iOS 12, macOS Mojave 10.14, tvOS 12, and watchOS 5. No CVSS, CWE, component, or exploit prerequisite details are provided.

Likely exposure

Exposure is most likely on legacy or unmanaged Apple devices still running versions earlier than iOS 12, macOS Mojave 10.14, tvOS 12, or watchOS 5. Current supported devices are unlikely to remain exposed if normal OS updates are applied.

Exploitation context

The supplied sources do not state active exploitation, public exploit availability, or inclusion in CISA KEV. Treat this as a patch verification issue unless additional intelligence identifies exploitation against your environment or asset class.

Researcher notes

Evidence is sparse. Do not infer a specific subsystem, remote attack vector, sandbox impact, or exploitability beyond the stated memory corruption description. The strongest conclusions are affected OS families, fixed release thresholds, and absence of KEV evidence in the supplied bundle.

Mitigation direction

  • Update Apple devices to the listed fixed versions or later.
  • Check Apple security guidance for product-specific update instructions.
  • Use MDM to enforce minimum OS versions where possible.
  • Retire or isolate devices that cannot be updated.
  • Track exceptions for unsupported or business-critical Apple assets.

Validation and detection

  • Inventory iOS, macOS, tvOS, and watchOS versions across managed assets.
  • Confirm no devices run versions earlier than the fixed releases.
  • Review MDM compliance reports for outdated Apple operating systems.
  • Check exception lists for unsupported Apple devices.
  • Verify Apple advisories reference CVE-2018-4383 for the applied updates.
Prepared
Confidence
medium
Sources
6

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-2018-4383 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
5Source 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, macOS, tvOS, watchOSVersions prior to: iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5Listed
Weakness

CWE details

No CWE listed

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