CVE-1999-0819

Summary

CVE-1999-0819 is a vulnerability affecting NTMail, an email component of Microsoft Exchange Server prior to version 5.5. The issue lies in the failure of NTMail to disable the VRFY command, despite it being turned off by administrators. This command enables email address verification, which can be exploited by attackers to gain unauthorized access to user accounts and potentially lead to password disclosure or data theft. This vulnerability poses a significant risk to email servers, and it is recommended that affected organizations apply the necessary patches or upgrades to mitigate the threat.

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