CVE-2023-40440

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
appleCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 36%
VendorProductVersion
applemacos
12.0.0 ≤
𝑥
< 12.6.8
𝑥
= Vulnerable software versions
References
https://blog.aegrel.ee/apple-mail-smime.html
https://support.apple.com/en-us/HT213844
https://blog.aegrel.ee/apple-mail-smime.html
https://support.apple.com/en-us/HT213844