Microsoft ≫ Exchange Server

Outlook Web Access (OWA) in Microsoft Exchange 2000 allows an authenticated user to cause a denial of service (CPU consumption) via a malformed OWA request for a deeply nested folder within the user's mailbox.

Vulnerabilities in RPC servers in (1) Microsoft Exchange Server 2000 and earlier, (2) Microsoft SQL Server 2000 and earlier, (3) Windows NT 4.0, and (4) Windows 2000 allow remote attackers to cause a denial of service via malformed inputs.

Memory leak in NNTP service in Windows NT 4.0 and Windows 2000 allows remote attackers to cause a denial of service (memory exhaustion) via a large number of malformed posts.

An interaction between the Outlook Web Access (OWA) service in Microsoft Exchange 2000 Server and Internet Explorer allows attackers to execute malicious script code against a user's mailbox via a message attachment that contains HTML code, which is ...

Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.

IIS 5.0 and Microsoft Exchange 2000 allow remote attackers to cause a denial of service (memory allocation error) by repeatedly sending a series of specially formatted URL's.

Buffer overflow in Internet Mail Service (IMS) for Microsoft Exchange 5.5 and 5.0 allows remote attackers to conduct a denial of service via AUTH or AUTHINFO commands.

The installation of Microsoft Exchange 2000 before Rev. A creates a user account with a known password, which could allow attackers to gain privileges, aka the "Exchange User Account" vulnerability.

Microsoft Exchange Server 5.5 does not properly handle a MIME header with a blank charset specified, which allows remote attackers to cause a denial of service via a charset="" command, aka the "Malformed MIME Header" vulnerability.

Microsoft Outlook and Outlook Express allow remote attackers to cause a denial of service by sending email messages with blank fields such as BCC, Reply-To, Return-Path, or From.