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CVE Record

CVE-2018-4437: Multiple memory corruption issues were addressed with improved memory handling.

Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.

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 multiple memory corruption issues in several products. Organizations are exposed only where old Apple software remains below the listed fixed versions. The provided sources do not show active exploitation, CVSS scoring, or detailed impact, so urgency depends on whether legacy clients still exist.

Executive priority

Prioritize as a legacy hygiene issue unless asset inventory shows affected versions in use. Memory corruption bugs can be serious, but the provided evidence lacks exploitation, CVSS, and impact detail. Focus on patch compliance and unsupported Apple software cleanup.

Technical view

CVE-2018-4437 is described as multiple memory corruption issues addressed through improved memory handling. Affected versions are prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, and iCloud for Windows 7.9. Component, CWE, CVSS, and exploit mechanics are not provided.

Likely exposure

Likely exposure is limited to legacy Apple devices, Safari installations, and Windows systems running old iTunes or iCloud versions below the fixed releases. Modern managed fleets should have low residual exposure if normal patching and unsupported-device retirement are enforced.

Exploitation context

The source bundle marks this CVE as not in CISA KEV and provides no cited evidence of active exploitation. It also does not describe public exploit availability or exploitation prerequisites. Treat exploitation status as unconfirmed, not actively exploited.

Researcher notes

The public record is sparse. It identifies affected product/version boundaries and a general memory corruption fix, but not root cause, affected component, attack vector, or exploitability. Researchers should avoid assuming browser remote code execution without vendor detail.

Mitigation direction

  • Upgrade affected Apple software to the listed fixed versions or later.
  • Remove obsolete iTunes or iCloud for Windows where no business need remains.
  • Check Apple security guidance for any newer platform-specific remediation.
  • Retire devices that cannot receive supported Apple security updates.

Validation and detection

  • Inventory iOS, tvOS, watchOS, Safari, iTunes, and iCloud versions.
  • Compare discovered versions against the fixed release thresholds.
  • Confirm endpoint management reports include unmanaged or intermittently connected devices.
  • Document exceptions for unsupported assets and assign retirement owners.
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-2018-4437 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: iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9Listed
Weakness

CWE details

No CWE listed

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