High severity7.5NVD Advisory· Published Sep 12, 2023· Updated Jun 17, 2026
CVE-2023-40440
CVE-2023-40440
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2= 12.6.8+ 1 more
- (no CPE)range: = 12.6.8
- (no CPE)range: unspecified
Patches
Vulnerability mechanics
References
2- support.apple.com/en-us/HT213844nvdRelease NotesVendor Advisory
- blog.aegrel.ee/apple-mail-smime.htmlnvd
News mentions
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