LiveActive security incident?Get immediate response
CVE Record

CVE-2018-4443: 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 12.1.1, 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
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-4443 is an Apple memory corruption flaw fixed in late-2018 updates. The public record confirms affected Apple platforms and Windows Apple software, but gives no severity score or detailed impact. Business urgency depends mainly on whether any legacy systems still run the listed vulnerable versions.

Executive priority

Moderate operational priority for organizations with legacy Apple or Windows Apple software. The absence of severity and exploitation evidence lowers urgency, but memory corruption flaws can be serious and should not remain unpatched indefinitely.

Technical view

Apple describes this as a memory corruption issue addressed through improved memory handling. Affected versions are before 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.

Likely exposure

Exposure is most likely on unmanaged, legacy, or unsupported Apple devices, old Safari installations, and Windows systems with outdated iTunes or iCloud. Modern managed fleets are less likely exposed if normal update controls have been maintained since 2018.

Exploitation context

The provided sources do not report active exploitation, and this CVE is not marked KEV. They also do not specify attack vector, required user interaction, affected component, or practical exploitability. Treat exploitation details as unconfirmed.

Researcher notes

Public evidence is sparse: no CVSS, CWE, component, root-cause detail, or exploit status is provided in the bundle. Fixed-version boundaries are clear, so validation should focus on version inventory and whether Apple advisories provide additional local context.

Mitigation direction

  • Update affected products to the fixed versions named by Apple or later.
  • Remove or replace unsupported systems that cannot receive those updates.
  • Check Apple’s advisory pages for product-specific guidance before operational changes.
  • Include Windows iTunes and iCloud installations in remediation scope.

Validation and detection

  • Inventory iOS, tvOS, watchOS, Safari, iTunes for Windows, and iCloud for Windows versions.
  • Confirm no assets run versions earlier than Apple’s fixed releases.
  • Review MDM, EDR, and software management reports for stale Apple software.
  • Document exceptions where devices cannot be updated or replaced.
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-2018-4443 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, 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.