CVE-1999-1043

Summary

CVE-1999-1043 is a denial-of-service vulnerability affecting Microsoft Exchange Server 5.5 and 5.0. The issue arises from the servers' inability to handle malformed NNTP (Network News Transfer Protocol) and SMTP (Simple Mail Transfer Protocol) data. An attacker can exploit this vulnerability by sending malformed data packets to the server, resulting in an application error and subsequent denial of service. This issue may cause disruption to email and newsgroup services on the affected servers. It is recommended that users of these versions of Microsoft Exchange apply available patches to mitigate the risk.

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