Vulnerability Description
This issue was addressed with improved state management of S/MIME encrypted emails. This issue is fixed in macOS Monterey 12.6.8. A S/MIME encrypted email may be inadvertently sent unencrypted.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Macos | >= 12.0.0, < 12.6.8 |
References
- https://blog.aegrel.ee/apple-mail-smime.html
- https://support.apple.com/en-us/HT213844Release NotesVendor Advisory
- https://blog.aegrel.ee/apple-mail-smime.html
- https://support.apple.com/en-us/HT213844Release NotesVendor Advisory
FAQ
What is CVE-2023-40440?
CVE-2023-40440 is a vulnerability with a CVSS score of 7.5 (HIGH). This issue was addressed with improved state management of S/MIME encrypted emails. This issue is fixed in macOS Monterey 12.6.8. A S/MIME encrypted email may be inadvertently sent unencrypted.
How severe is CVE-2023-40440?
CVE-2023-40440 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-40440?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.