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CVE Record

CVE-2018-4273: Multiple memory corruption issues were addressed with improved input validation.

Multiple memory corruption issues were addressed with improved input validation. 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

CVE-2018-4273 is an Apple security issue involving multiple memory corruption bugs. Apple fixed it by improving input validation. Sources identify older iOS, tvOS, watchOS, Safari, iTunes for Windows, and iCloud for Windows versions as affected, but do not provide CVSS, severity, or exploit details.

Executive priority

Prioritize routine remediation where legacy Apple software remains in use. The issue is memory corruption, but available sources lack severity and exploitation evidence, so urgency depends on remaining outdated assets.

Technical view

The CVE record describes multiple memory corruption issues resolved through improved input validation. Affected versions are before 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

Exposure is most likely on legacy Apple devices, Safari installations, and Windows systems running outdated iTunes or iCloud versions below the fixed releases named by Apple.

Exploitation context

The provided bundle does not show CISA KEV listing, active exploitation, public exploit availability, or attacker behavior. Treat exploitation status as unconfirmed from these sources.

Researcher notes

Evidence is limited to Apple’s brief advisory language and CVE metadata. No CWE, CVSS vector, exploit conditions, or affected component details are provided in the bundle, limiting validation depth.

Mitigation direction

  • Update affected Apple products to the fixed versions or later.
  • Prioritize unsupported or unmanaged devices still running pre-fixed releases.
  • Check Apple guidance for any product-specific remediation details.
  • Remove obsolete iTunes or iCloud for Windows installations if no longer needed.

Validation and detection

  • Inventory iOS, tvOS, watchOS, Safari, iTunes, and iCloud versions.
  • Confirm versions meet or exceed Apple’s fixed release numbers.
  • Review endpoint management data for unmanaged legacy Apple software.
  • Document exceptions where devices cannot be upgraded.
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-2018-4273 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.