Security readout for executives and security teams
Plain-English summary
CVE-2023-42881 is an Apple macOS memory handling flaw fixed in macOS Sonoma 14.2. A user processing a file could trigger an app crash or arbitrary code execution. Business urgency is high for managed Mac fleets, especially endpoints handling files from email, browsers, or external sources.
Executive priority
Treat as a high-priority endpoint patching issue, not a confirmed breach signal. Focus on rapid macOS update compliance for user workstations that handle outside files.
Technical view
Apple describes a CWE-119 memory issue in macOS where processing a file may cause unexpected app termination or arbitrary code execution. CVSS 7.8 indicates local attack vector, low complexity, no privileges required, and user interaction required, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to macOS systems before the Apple fix in macOS Sonoma 14.2, but the source bundle does not name exact vulnerable versions. File-handling workflows increase practical risk because user interaction is required.
Exploitation context
No active exploitation is stated in the provided sources, and the CVE is not marked KEV. The documented scenario requires a user to process a file locally; no remote, no-click exploitation path is supported by the bundle.
Researcher notes
The public detail is sparse: Apple names improved memory handling and file processing impact, but not the component, file type, or vulnerable version range. Avoid over-scoping beyond macOS and Sonoma 14.2 remediation evidence.
Mitigation direction
- Update affected macOS systems to macOS Sonoma 14.2 or a later Apple-supported release.
- Prioritize endpoints that routinely handle files from email, browsers, or external sources.
- Review Apple advisory HT214036 for any product-specific update guidance.
- Reduce opening of untrusted files on unpatched Macs until remediation is complete.
Validation and detection
- Inventory macOS devices and identify systems not at Sonoma 14.2 or later.
- Confirm installed builds are covered by Apple's security update guidance.
- Check vulnerability management records for CVE-2023-42881 closure evidence.
- Review crash or security telemetry for suspicious file-processing failures, without assuming exploitation.
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.
CWE-119: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-42881 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/HT214036CVE reference
- https://support.apple.com/kb/HT214036CVE 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.
Improper Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.