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CVSS: 7.5EPSS: 9%CPEs: 1EXPL: 0

06 Dec 2001 — Outlook Web Access (OWA) in Microsoft Exchange 5.5 Server, when used with Internet Explorer, does not properly detect certain inline script, which can allow remote attackers to perform arbitrary actions on a user's Exchange mailbox via an HTML e-mail message. • http://www.osvdb.org/5557 •

CVSS: 5.3EPSS: 19%CPEs: 1EXPL: 0

30 Oct 2001 — Outlook Web Access (OWA) in Microsoft Exchange 5.5, SP4 and earlier, allows remote attackers to identify valid user email addresses by directly accessing a back-end function that processes the global address list (GAL). • http://support.microsoft.com/support/kb/articles/Q307/1/95.ASP •

CVSS: 7.5EPSS: 13%CPEs: 9EXPL: 0

29 Aug 2001 — 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. • https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-041 • CWE-20: Improper Input Validation •

CVSS: 7.6EPSS: 7%CPEs: 2EXPL: 0

21 Jul 2001 — 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 executed automatically. • http://www.ciac.org/ciac/bulletins/l-091.shtml • CWE-434: Unrestricted Upload of File with Dangerous Type •

CVSS: 7.5EPSS: 10%CPEs: 2EXPL: 0

16 Jul 2001 — 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. • http://ciac.llnl.gov/ciac/bulletins/l-116.shtml •

CVSS: 7.5EPSS: 21%CPEs: 2EXPL: 0

12 Mar 2001 — 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. • http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ169174 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVSS: 7.5EPSS: 10%CPEs: 1EXPL: 1

11 Dec 2000 — 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. • http://www.securityfocus.com/bid/1869 •

CVSS: 7.5EPSS: 6%CPEs: 2EXPL: 0

31 Dec 1999 — Microsoft Exchange Server 5.5 and 5.0 does not properly handle (1) malformed NNTP data, or (2) malformed SMTP data, which allows remote attackers to cause a denial of service (application error). • https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-007 •

CVSS: 9.1EPSS: 8%CPEs: 2EXPL: 0

13 Dec 1999 — Modifications to ACLs (Access Control Lists) in Microsoft Exchange 5.5 do not take effect until the directory store cache is refreshed. • https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0993 • CWE-665: Improper Initialization •

CVSS: 5.0EPSS: 18%CPEs: 3EXPL: 0

06 Aug 1999 — Microsoft Exchange 5.5 allows a remote attacker to relay email (i.e. spam) using encapsulated SMTP addresses, even if the anti-relaying features are enabled. • http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ237927 •