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CVE-2023-40440

Quick assessment

Affected
Apple macOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apple macOS Monterey是美国苹果（Apple）公司的用于麦金塔桌面操作系统macOS的第18个主要版本。 Apple macOS Monterey 12.6.8之前版本存在安全漏洞，该漏洞源于S/MIME加密的电子邮件可能会无意中以未加密的方式发送。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2023-40440

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apple macOS Monterey 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apple macOS Monterey是美国苹果（Apple）公司的用于麦金塔桌面操作系统macOS的第18个主要版本。 Apple macOS Monterey 12.6.8之前版本存在安全漏洞，该漏洞源于S/MIME加密的电子邮件可能会无意中以未加密的方式发送。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apple macOS unspecified ~ 12.6 -

II. Public POCs for CVE-2023-40440

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III. Intelligence Information for CVE-2023-40440

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Vendor Advisories for CVE-2023-40440 (1)

Security Blog Posts for CVE-2023-40440 (1)

Same Patch Batch · Apple · 2023-09-11 · 3 CVEs total

CVE-2023-41990 Apple watchOS 安全漏洞
CVE-2023-40442 Apple iOS 和 iPadOS 日志信息泄露漏洞

IV. Related Vulnerabilities

Same product: macOS
Same vendor: Apple

V. Comments for CVE-2023-40440

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