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CVE Record

CVE-2018-4216: A logic issue existed in the handling of call URLs.

A logic issue existed in the handling of call URLs. This issue was addressed with improved state management. This issue affected versions prior to iOS 11.4.1.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2018-4216 is an Apple iOS logic issue involving how call URLs were handled. Apple addressed it with improved state management in iOS 11.4.1. Business risk is mainly legacy iPhones or iPads still running versions before iOS 11.4.1.

Executive priority

Handle through normal legacy-device remediation unless affected devices support sensitive roles. The available evidence does not justify emergency response, but unsupported mobile devices should not remain in trusted environments.

Technical view

The public record describes a logic flaw in iOS call URL handling, corrected through improved state management. The sources do not provide CVSS, CWE, impact details, exploit prerequisites, or proof of active exploitation.

Likely exposure

Exposure is limited to iOS devices running versions prior to iOS 11.4.1. Modern managed fleets are unlikely exposed unless legacy devices remain in service.

Exploitation context

The supplied sources do not report exploitation in the wild, and the CVE is not marked as CISA KEV. Treat exploitability details as incomplete.

Researcher notes

Public details are sparse. Validation should focus on version exposure, asset ownership, and whether call URL handling paths are reachable in business workflows. Do not infer affected Apple platforms beyond iOS from the supplied bundle.

Mitigation direction

  • Update affected iOS devices to iOS 11.4.1 or later.
  • Use MDM inventory to identify devices below iOS 11.4.1.
  • Retire or isolate devices that cannot receive supported iOS updates.
  • Review Apple security update guidance for affected device specifics.

Validation and detection

  • Confirm all managed iOS assets report iOS 11.4.1 or later.
  • Check for unmanaged legacy Apple devices in high-risk business areas.
  • Verify MDM compliance policies block outdated iOS versions.
  • Document exceptions for devices that cannot be updated.
Prepared
Confidence
medium
Sources
3

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-2018-4216 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
2Source 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/aiOSVersions prior to: iOS 11.4.1Listed
Weakness

CWE details

No CWE listed

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