Security readout for executives and security teams
Plain-English summary
CVE-2023-42858 is an Apple macOS privacy issue where a local app may access user-sensitive data. Apple says it was fixed with improved checks in macOS Sonoma 14.1, Ventura 13.6.1, and Monterey 12.7.1.
Executive priority
Treat as a normal-priority endpoint patching item with confidentiality impact. It is not currently supported as actively exploited by the provided sources, but unpatched Macs may expose sensitive user data to local apps.
Technical view
The CVSS 3.1 vector is local, low complexity, low privilege, no user interaction, unchanged scope, and high confidentiality impact. The public record does not identify the vulnerable component or CWE. Apple describes the fix only as improved checks.
Likely exposure
Exposure is most likely on macOS systems that have not been updated to Sonoma 14.1, Ventura 13.6.1, Monterey 12.7.1, or later. The affected macOS versions are otherwise listed as unspecified in the source bundle.
Exploitation context
The source bundle does not report active exploitation, and this CVE is not marked KEV. The documented scenario requires a local app with low privileges; the risk is unauthorized access to sensitive user data, not integrity or availability impact.
Researcher notes
Public detail is limited. Apple confirms the impact and fixed versions but does not name the component, CWE, exploit technique, or workaround. Validate exposure through OS version state, not vulnerability probing.
Mitigation direction
- Update macOS to Sonoma 14.1, Ventura 13.6.1, Monterey 12.7.1, or later.
- Prioritize managed Macs used for sensitive business data or privileged workflows.
- Review Apple security guidance for any environment-specific update instructions.
- Track unpatched macOS devices as exceptions until remediated.
Validation and detection
- Inventory macOS versions across managed and unmanaged Apple endpoints.
- Confirm fixed releases or later are installed on in-scope systems.
- Check MDM or endpoint management compliance reports for update completion.
- Document any unsupported or deferred systems requiring 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
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CVE-2023-42858 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/HT213984CVE reference
- https://support.apple.com/en-us/HT213985CVE reference
- https://support.apple.com/en-us/HT213983CVE reference
- https://support.apple.com/kb/HT213985CVE reference
- https://support.apple.com/kb/HT213984CVE reference
- https://support.apple.com/kb/HT213983CVE reference
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.