CVE-2023-40398 — This issue was addressed with improved checks

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.6.4, macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4. A sandboxed process may be able to circumvent sandbox restrictions.

01What is this vulnerability?

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.6.4, macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4. A sandboxed process may be able to circumvent sandbox restrictions.

02Affected products

Vendor	Product	Versions
Apple	macOS	unspecified
Apple	iOS and iPadOS	unspecified
Apple	macOS	unspecified
Apple	macOS	unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-07-29T20:21:38.503Z
• Last modified: 2025-03-13T15:12:17.973Z

09References

• support.apple.com — https://support.apple.com/en-us/HT213670
• support.apple.com — https://support.apple.com/en-us/HT213676
• support.apple.com — https://support.apple.com/en-us/HT213677
• support.apple.com — https://support.apple.com/en-us/HT213675