Security readout for executives and security teams
Plain-English summary
CVE-2018-4307 is an Apple logic issue affecting iOS and Safari versions before iOS 12 and Safari 12. Apple says it was addressed with improved state management. The source bundle does not describe the business impact, attack path, or severity, so urgency depends on whether legacy Apple devices or browsers remain in use.
Executive priority
Set priority by asset prevalence. If legacy iOS or Safari versions remain in production, remediate promptly through upgrade or retirement. If the fleet is already on supported versions, this is mainly a validation and inventory closure item.
Technical view
The bundle identifies a logic flaw fixed in iOS 12 and Safari 12. No CVSS score, CWE, affected component, attack vector, privileges, user interaction requirement, or impact type is provided. Treat it as a legacy Apple exposure requiring version validation rather than vulnerability-specific testing from the available evidence.
Likely exposure
Exposure is likely limited to Apple endpoints or browsers running iOS versions before 12 or Safari versions before 12. Organizations with fully updated or retired legacy Apple assets are unlikely to be exposed based on the supplied affected-version data.
Exploitation context
No active exploitation is supported by the provided sources. The CVE is not marked as KEV, and the bundle does not cite exploit reports, public proof-of-concept material, or observed attacks.
Researcher notes
Available evidence is sparse. The sources establish affected products and fixed versions but do not identify root cause details, affected subsystem, exploitability conditions, or security impact. Avoid inferring severity beyond the Apple and CVE wording.
Mitigation direction
- Inventory Apple devices and Safari installations for versions below iOS 12 or Safari 12.
- Upgrade affected systems to iOS 12, Safari 12, or later where supported.
- Retire or isolate Apple devices that cannot receive supported updates.
- Check Apple security guidance before relying on compensating controls.
- Prioritize managed fleets where browser or mobile OS updates are delayed.
Validation and detection
- Confirm endpoint management data reports iOS 12 or later on Apple mobile devices.
- Confirm Safari installations report version 12 or later.
- Review asset inventory for unsupported Apple devices still accessing business systems.
- Check vulnerability scanner findings against actual OS and browser versions.
- Verify update policies cover unmanaged or bring-your-own Apple devices.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-2018-4307 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/kb/HT209106CVE reference · x_refsource_MISC
- https://support.apple.com/kb/HT209109CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.