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CVE Record

CVE-2018-4306: A use after free issue was addressed with improved memory management.

A use after free issue was addressed with improved memory management. This issue affected versions prior to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-4306 is an Apple memory-safety flaw described as a use-after-free issue. Apple says it was fixed with improved memory management. The source bundle does not provide impact details, CVSS, or evidence of active exploitation, so urgency depends on whether legacy affected versions remain in use.

Executive priority

Treat this as a legacy exposure cleanup item unless vulnerable versions are still deployed at scale. Because exploitation and impact details are not supplied, prioritize asset discovery and patch verification over emergency response.

Technical view

The CVE affects versions before iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, and iCloud for Windows 7.7. The public description only states use-after-free and improved memory management; it does not identify the vulnerable component, attack vector, privileges, or security impact.

Likely exposure

Exposure is most likely in unmanaged or legacy Apple devices, old Safari installations, and Windows systems still running older iTunes or iCloud clients. Fully updated environments should have low residual exposure based on the fixed version list.

Exploitation context

The provided bundle marks this CVE as not in KEV and includes no cited evidence of active exploitation. The sources do not describe exploit prerequisites, exploit maturity, or whether exploitation requires user interaction.

Researcher notes

Public evidence is sparse: no CVSS, CWE, component name, impact statement, or exploit details are included in the bundle. Analysis should stay constrained to version exposure and vendor-fixed release confirmation.

Mitigation direction

  • Update iOS to 12 or later on supported devices.
  • Update tvOS to 12 or later on supported devices.
  • Update Safari to 12 or later where applicable.
  • Update iTunes for Windows to 12.9 or later.
  • Update iCloud for Windows to 7.7 or later.
  • Check Apple guidance for unsupported systems without an update path.

Validation and detection

  • Inventory Apple devices and Windows hosts running Apple software.
  • Confirm installed versions meet or exceed the fixed release thresholds.
  • Flag unsupported or unmanaged systems below the fixed versions.
  • Review Apple advisory references for product-specific update coverage.
  • Document any exceptions and compensating controls for legacy assets.
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

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CVE-2018-4306 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
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, tvOS, Safari, iTunes for Windows, iCloud for WindowsVersions prior to: iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7Listed
Weakness

CWE details

No CWE listed

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