LiveActive security incident?Get immediate response
CVE Record

CVE-2018-4401: A memory corruption issue was addressed with improved memory handling.

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

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Apple vulnerability is a memory-corruption flaw fixed in major 2018 Apple OS releases. The public record does not describe attacker requirements, impact, CVSS, or active exploitation. Organizations mainly need to find legacy Apple devices still below iOS 12, macOS Mojave 10.14, tvOS 12, or watchOS 5 and update or retire them.

Executive priority

Moderate operational priority unless legacy Apple devices remain in production. The business task is asset hygiene: identify outdated Apple systems, patch what is still supportable, and remove or isolate devices that cannot be upgraded.

Technical view

CVE-2018-4401 is described only as a memory corruption issue addressed through improved memory handling. Affected software is listed as versions before iOS 12, macOS Mojave 10.14, tvOS 12, and watchOS 5. No CWE, CVSS vector, vulnerable component, attack vector, or exploit details are provided in the source bundle.

Likely exposure

Exposure is most likely on unmanaged, unpatched, or legacy Apple endpoints and devices that remained below the named fixed releases. Modern fleets running later supported Apple operating systems are unlikely to be exposed based on the provided affected-version statement.

Exploitation context

The supplied sources do not show CISA KEV listing, public exploitation, exploit maturity, or attacker behavior for this CVE. Treat exploitation status as not established from the available evidence, not as proof that exploitation never occurred.

Researcher notes

Public evidence is sparse. The record confirms a memory-corruption class issue and fixed-version boundaries, but lacks component, trigger, privilege, user-interaction, network exposure, and impact details. Do not infer exploitability beyond Apple’s advisory language.

Mitigation direction

  • Update affected Apple devices to the named fixed releases or later.
  • Prioritize unsupported legacy devices that cannot receive current Apple security updates.
  • Check Apple advisories for model-specific update availability and constraints.
  • Use MDM or endpoint inventory to enforce minimum OS baselines.

Validation and detection

  • Inventory iOS, macOS, tvOS, and watchOS versions across managed assets.
  • Flag devices below iOS 12, macOS Mojave 10.14, tvOS 12, or watchOS 5.
  • Confirm patch compliance through MDM, EDR, or asset-management records.
  • Document any compensating controls for devices that cannot be upgraded.
Prepared
Confidence
medium
Sources
7

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2018-4401 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
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
6Source 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.