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CVE Record

CVE-2018-4266: A race condition was addressed with additional validation.

A race condition was addressed with additional validation. This issue affected versions prior toiVersions prior to: OS 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

Apple addressed a race condition with added validation across several consumer and enterprise endpoint products. The public bundle does not state the impact, severity, CVSS score, or exploitation status, so urgency depends mainly on whether old Apple software remains in use.

Executive priority

Treat this as a legacy hygiene issue unless your estate still includes affected versions. Ask endpoint owners to verify coverage, especially for unmanaged Apple devices and Windows systems with Apple client software.

Technical view

CVE-2018-4266 affects versions before 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 source describes a race condition fixed by additional validation, without naming the component or security consequence.

Likely exposure

Exposure is most likely on legacy Apple devices, Safari installations, and Windows systems still running old iTunes or iCloud versions. Modern fully updated environments are unlikely to remain exposed, but unmanaged devices and archived Windows images should be checked.

Exploitation context

The source bundle does not indicate active exploitation, and KEV status is false. No public exploit details, attack vector, or affected component are provided in the supplied sources, so exploitation likelihood cannot be responsibly assessed from this bundle alone.

Researcher notes

The record is sparse: no CVSS, CWE, component, impact, or exploit signal is included. Analysis should stay limited to version exposure and vendor update status unless additional Apple advisory detail is reviewed outside this bundle.

Mitigation direction

  • Update affected Apple products to the listed fixed versions or later.
  • Prioritize unmanaged endpoints and Windows hosts running iTunes or iCloud.
  • Check Apple advisories for product-specific update availability and support status.
  • Retire or isolate devices that cannot receive vendor-supported updates.

Validation and detection

  • Inventory iOS, tvOS, watchOS, Safari, iTunes for Windows, and iCloud for Windows versions.
  • Confirm versions meet or exceed the fixed releases listed by Apple.
  • Review endpoint management records for unmanaged or unsupported Apple software.
  • Document exceptions and verify compensating controls for systems that cannot be updated.
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-2018-4266 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: OS 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.