LiveActive security incident?Get immediate response
CVE Record

CVE-2018-4347: 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, macOS Mojave 10.14, tvOS 12, watchOS 5, iTunes 12.9 for Windows, iCloud for Windows 7.7.

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

Security readout for executives and security teams

Plain-English summary

CVE-2018-4347 is an Apple use-after-free memory safety issue fixed in major 2018 Apple platform and Windows software releases. The source bundle does not provide CVSS, impact detail, attack vector, or component scope, so business urgency depends on whether legacy versions remain deployed.

Executive priority

Treat this as a legacy exposure cleanup item unless asset discovery shows affected versions in production. The lack of exploit and severity evidence lowers confidence in urgency, but memory safety flaws should not remain unpatched on managed endpoints.

Technical view

Apple states the issue was addressed with improved memory management. Affected versions are prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5, iTunes 12.9 for Windows, and iCloud for Windows 7.7. No CWE, CVSS, vector, or exploit prerequisites are provided.

Likely exposure

Exposure is most likely in legacy Apple devices or Windows endpoints still running pre-fixed iTunes or iCloud for Windows versions. Fully updated supported systems are unlikely to be exposed based on the provided affected-version statement.

Exploitation context

The bundle marks CISA KEV as false and provides no cited evidence of active exploitation. It also does not state whether exploitation is remote, local, user-assisted, or limited to a specific component.

Researcher notes

The public bundle is sparse: no impacted component, CVSS, CWE, attack vector, or impact statement is included. Analysis should stay anchored to Apple’s affected-version and fixed-version statements, with no assumptions about exploitability beyond the use-after-free class.

Mitigation direction

  • Upgrade affected Apple platforms to the fixed versions or later.
  • Update iTunes for Windows to 12.9 or later where installed.
  • Update iCloud for Windows to 7.7 or later where installed.
  • Check Apple guidance for any platform-specific update requirements.
  • Retire unsupported legacy devices that cannot receive fixed versions.

Validation and detection

  • Inventory iOS, macOS, tvOS, watchOS, iTunes, and iCloud for Windows versions.
  • Flag systems below the fixed versions listed by Apple.
  • Confirm endpoint management reports successful installation of required Apple updates.
  • Review asset records for unsupported devices outside normal patch tooling.
  • Document exceptions with compensating controls and retirement dates.
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

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-2018-4347 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
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, macOS, tvOS, watchOS, iTunes for Windows, iCloud for WindowsVersions prior to: iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5, 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.