CVE-1999-0819

Summary

CVE-1999-0819 is a vulnerability affecting NTMail, an email component of Microsoft Exchange Server 5.5. This issue arises due to NTMail's failure to disable the VRFY command, despite administrators explicitly disabling it. An attacker can exploit this vulnerability by sending a specially crafted email containing the VRFY command, potentially leading to unauthorized account enumeration and further attacks. This security weakness poses a significant risk, emphasizing the importance of keeping email servers up-to-date and secure.

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