CVE-1999-1164

Summary

CVE-1999-1164 is a denial-of-service vulnerability affecting the Microsoft Outlook email client. An attacker can exploit this issue by sending multiple emails with identical X-UIDL headers to a targeted user. Upon receiving these messages, Outlook becomes unresponsive due to the conflict between the duplicate headers. This can cause significant disruption for the affected user, preventing them from accessing their email until the program is restarted.

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