Security readout for executives and security teams
Plain-English summary
This is an Apple privacy issue: deleting a browser history item may not remove related visits created through redirect chains. The documented impact is incomplete history deletion, not system compromise. It affected iOS and Safari versions before iOS 12 and Safari 12.
Executive priority
Low immediate urgency for current fleets, but legacy Apple devices should be remediated because the issue can undermine user privacy expectations and data deletion controls.
Technical view
CVE-2018-4329 concerns history deletion logic in iOS and Safari. Visits associated with redirect chains could remain after a user cleared a history item. Apple says the issue was addressed with improved data deletion. The bundle provides no CVSS, CWE, exploit details, or broader technical root cause.
Likely exposure
Exposure is limited to environments still using iOS versions before 12 or Safari versions before 12. Modern managed Apple fleets are likely unaffected if they meet or exceed those versions, but legacy devices or frozen browser builds need checking.
Exploitation context
The source bundle does not report active exploitation, public exploit availability, or CISA KEV listing. Treat this as a privacy and data-retention concern unless other evidence emerges.
Researcher notes
Evidence is sparse. The available record identifies affected version ranges and Apple’s fix category, but does not provide CVSS, CWE mapping, a detailed attack model, or proof of exploitation.
Mitigation direction
- Upgrade affected devices to iOS 12 or later.
- Upgrade affected Safari installations to Safari 12 or later.
- Review Apple advisories HT209106 and HT209109 for vendor guidance.
- Remove or isolate unsupported Apple devices that cannot be upgraded.
Validation and detection
- Inventory managed Apple devices and Safari versions.
- Confirm no production devices run iOS versions before 12.
- Confirm no managed Macs use Safari versions before 12.
- Review privacy support tickets or incidents involving retained browser history.
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-2018-4329 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.