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CVE Record

CVE-2018-4270: 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 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 fixed a memory corruption flaw affecting older Apple operating systems, Safari, and Apple Windows software. The public bundle does not describe business impact, attack path, or severity. Exposure is mainly legacy systems that have not reached the listed fixed versions.

Executive priority

Treat this as a legacy hygiene issue unless inventory shows affected versions in use. Prioritize remediation for internet-facing, executive, or high-value user endpoints still running the vulnerable software.

Technical view

CVE-2018-4270 is described only as a memory corruption issue addressed through improved memory handling. Affected software is earlier than 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.

Likely exposure

Organizations may be exposed if they still operate unmanaged or legacy Apple devices, older Safari installations, or Windows hosts with outdated iTunes or iCloud. Current supported versions are likely beyond the fixed releases, but legacy inventory should be checked.

Exploitation context

The source bundle marks KEV as false and provides no evidence of active exploitation, public exploit use, or exploit maturity. The available description is too sparse to infer real-world exploitation likelihood.

Researcher notes

Public details are limited to memory corruption and fixed version information. No CVSS, CWE, affected component, attack vector, or impact statement is present in the supplied bundle, so deeper technical conclusions should not be made from these sources alone.

Mitigation direction

  • Upgrade iOS to 11.4.1 or later where still applicable.
  • Upgrade tvOS to 11.4.1 or later.
  • Upgrade watchOS to 4.3.2 or later.
  • Upgrade Safari to 11.1.2 or later.
  • Upgrade iTunes for Windows to 12.8 and iCloud for Windows to 7.6 or later.
  • Check current Apple guidance for supported upgrade paths on legacy devices.

Validation and detection

  • Inventory Apple devices and Windows hosts running Apple software.
  • Verify OS and application versions meet or exceed the fixed releases.
  • Check vulnerability scanners for CVE-2018-4270 matches on legacy assets.
  • Review MDM and endpoint reports for unsupported Apple software.
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-2018-4270 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 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.