Security readout for executives and security teams
Plain-English summary
This Apple issue could let a malicious app access the microphone without making that access visible in the status bar. The business risk is private conversation or meeting audio exposure on older Apple devices that have not been updated beyond the vulnerable versions.
Executive priority
Treat this as a privacy-sensitive legacy exposure. It is not reported as actively exploited in the provided sources, but organizations with older Apple fleets should prioritize update verification and remove unsupported devices from sensitive workflows.
Technical view
CVE-2018-4173 affects the Apple Status Bar component in iOS before 11.3 and macOS before 10.13.4. The CVE states that a crafted app can enable invisible microphone access. The source bundle does not provide CVSS, CWE, root-cause detail, or exploit prerequisites beyond crafted app execution.
Likely exposure
Exposure is most likely on legacy or unmanaged Apple devices running iOS earlier than 11.3 or macOS earlier than 10.13.4. Current exposure depends on whether those versions remain in service and whether untrusted or poorly governed apps can run.
Exploitation context
CISA KEV is false in the provided bundle, and no cited source reports active exploitation. The described abuse requires a crafted app, so the main concern is malicious or untrusted application presence on vulnerable Apple systems.
Researcher notes
The record is sparse: no CVSS, CWE, patch details, or technical root cause are included in the bundle. Analysis should stay anchored to the stated affected versions and the crafted-app microphone-access impact unless Apple advisory details are independently reviewed.
Mitigation direction
- Upgrade affected iOS devices to 11.3 or later where supported.
- Upgrade affected macOS systems to 10.13.4 or later where supported.
- Review the linked Apple advisories for vendor-specific update guidance.
- Restrict installation of untrusted apps on any device that cannot be upgraded.
- Retire or isolate Apple devices that remain below the fixed versions.
Validation and detection
- Inventory Apple endpoints and identify iOS versions earlier than 11.3.
- Inventory Macs and identify macOS versions earlier than 10.13.4.
- Confirm MDM policies restrict unmanaged or untrusted app installation.
- Check whether legacy affected devices are still used for sensitive meetings or calls.
- Document exceptions where updates are unsupported and track compensating controls.
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-2018-4173 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/HT208692CVE reference · x_refsource_CONFIRM
- https://support.apple.com/HT208693CVE reference · x_refsource_CONFIRM
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.