CVE-2025-65319
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk38th percentile - higher than 38% of all known CVEs
Summary
The vulnerability in Blue Mail 1.140.103 and earlier causes documents to be saved to the file system without a Mark-of-the-Web tag when using the attachment interaction functionality. This allows attackers to bypass the built-in file protection mechanisms of Windows OS and third-party software.
Risk Assessment
The organization is at risk of users executing malicious files because the missing Mark-of-the-Web tag bypasses protections like SmartScreen and warnings about opening files from the internet.
Recommendation
Immediately update Blue Mail to a version newer than 1.140.103 where the vulnerability is patched. Until the update, disable the attachment interaction feature or use additional security measures such as antivirus scanning.
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Original NVD description (English source)
When using the attachment interaction functionality, Blue Mail 1.140.103 and below saves documents to a file system without a Mark-of-the-Web tag, which allows attackers to bypass the built-in file protection mechanisms of both Windows OS and third-party software.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

