VendorsMicrosoftexchange_serverall versions
Vulnerabilities

Microsoft Exchange Server

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

259CVEs
CVE-2025-25006
Microsoft Exchange Server Spoofing Vulnerability
Published 2025-08-12 · Analyzed
5.3EPSS 0.009
CVE-2025-25007
Microsoft Exchange Server Spoofing Vulnerability
Published 2025-08-12 · Analyzed
5.3EPSS 0.009
CVE-2025-64667
Microsoft Exchange Server Spoofing Vulnerability
Published 2025-12-09 · Analyzed
5.3EPSS 0.008
CVE-2001-0146
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.
Published 2001-03-09 · Modified
5.0EPSS 0.371
CVE-2002-0055
SMTP service in Microsoft Windows 2000, Windows XP Professional, and Exchange 2000 allows remote attackers to cause a denial of service via a command with a malformed data transfer (BDAT) request.
Published 2002-06-25 · Modified
5.0EPSS 0.347
CVE-2002-1790
The SMTP service in Microsoft Internet Information Services (IIS) 4.0 and 5.0 allows remote attackers to bypass anti-relaying rules and send spam or spoofed messages via encapsulated SMTP addresses, a similar vulnerability to CVE-1999-0682.
Published 2005-06-28 · Modified
5.01 PoCEPSS 0.340
CVE-2001-1319
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.
Published 2002-05-03 · Modified
5.0EPSS 0.333
CVE-2009-0099
The Electronic Messaging System Microsoft Data Base (EMSMDB32) provider in Microsoft Exchange 2000 Server SP3 and Exchange Server 2003 SP2, as used in Exchange System Attendant, allows remote attackers to cause a denial of service (application outage) via a malformed MAPI command, aka "Literal Processing Vulnerability."
Published 2009-02-10 · Modified
5.0EPSS 0.262
CVE-1999-0682
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.
Published 2000-01-04 · Modified
5.0EPSS 0.261
CVE-2001-0660
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).
Published 2002-03-09 · Modified
5.0EPSS 0.220
CVE-2010-0025
The SMTP component in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, and Server 2008 Gold, SP2, and R2, and Exchange Server 2000 SP3, does not properly allocate memory for SMTP command replies, which allows remote attackers to read fragments of e-mail messages by sending a series of invalid commands and then sending a STARTTLS command, aka "SMTP Memory Allocation Vulnerability."
Published 2010-04-14 · Modified
5.0EPSS 0.215
CVE-1999-0945
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.
Published 2001-05-07 · Modified
5.0EPSS 0.195
CVE-2001-0543
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.
Published 2002-03-09 · Modified
5.0EPSS 0.188
CVE-2015-2505
Outlook Web Access (OWA) in Microsoft Exchange Server 2013 Cumulative Update 8 and 9 and SP1 allows remote attackers to obtain sensitive stacktrace information via a crafted request, aka "Exchange Information Disclosure Vulnerability."
Published 2015-09-09 · Modified
5.0EPSS 0.182
CVE-2001-0509
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.
Published 2001-08-29 · Modified
5.0EPSS 0.170
CVE-2002-0368
The Store Service in Microsoft Exchange 2000 allows remote attackers to cause a denial of service (CPU consumption) via a mail message with a malformed RFC message attribute, aka "Malformed Mail Attribute can Cause Exchange 2000 to Exhaust CPU Resources."
Published 2003-04-02 · Modified
5.0EPSS 0.152
CVE-2000-1006
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.
Published 2001-01-22 · Modified
5.0EPSS 0.148
CVE-2000-0524
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.
Published 2000-07-12 · Modified
5.0EPSS 0.146
CVE-2002-1873
Microsoft Exchange 2000, when used with Microsoft Remote Procedure Call (MSRPC), allows remote attackers to cause a denial of service (crash or memory consumption) via malformed MSRPC calls.
Published 2005-06-28 · Modified
5.0EPSS 0.136
CVE-1999-1043
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).
Published 2001-09-12 · Modified
5.0EPSS 0.132
CVE-2010-0024
The SMTP component in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, and Server 2008 Gold, SP2, and R2, and Exchange Server 2003 SP2, does not properly parse MX records, which allows remote DNS servers to cause a denial of service (service outage) via a crafted response to a DNS MX record query, aka "SMTP Server MX Record Vulnerability."
Published 2010-04-14 · Modified
5.0EPSS 0.107
CVE-2014-6319
Outlook Web App (OWA) in Microsoft Exchange Server 2007 SP3, 2010 SP3, and 2013 SP1 and Cumulative Update 6 does not properly validate tokens in requests, which allows remote attackers to spoof the origin of e-mail messages via unspecified vectors, aka "Outlook Web App Token Spoofing Vulnerability."
Published 2014-12-11 · Modified
5.0EPSS 0.097
CVE-2015-1631
Microsoft Exchange Server 2013 SP1 and Cumulative Update 7 allows remote attackers to spoof meeting organizers via unspecified vectors, aka "Exchange Forged Meeting Request Spoofing Vulnerability."
Published 2015-03-11 · Modified
5.0EPSS 0.091
CVE-1999-0007
Information from SSL-encrypted sessions via PKCS #1.
Published 1999-09-29 · Modified
5.0EPSS 0.076
CVE-2000-0216
Microsoft email clients in Outlook, Exchange, and Windows Messaging automatically respond to Read Receipt and Delivery Receipt tags, which could allow an attacker to flood a mail system with responses by forging a Read Receipt request that is redirected to a large distribution list.
Published 2000-03-22 · Modified
5.0EPSS 0.051
CVE-2005-0738
Stack consumption vulnerability in Microsoft Exchange Server 2003 SP1 allows users to cause a denial of service (hang) by deleting or moving a folder with deeply nested subfolders, which causes Microsoft Exchange Information Store service (Store.exe) to hang as a result of a large number of recursive calls.
Published 2005-03-13 · Modified
5.0EPSS 0.045
CVE-2001-1099
The default configuration of Norton AntiVirus for Microsoft Exchange 2000 2.x allows remote attackers to identify the recipient's INBOX file path by sending an email with an attachment containing malicious content, which includes the path in the rejection notice.
Published 2002-06-25 · Modified
5.0EPSS 0.032
CVE-2026-45502
Microsoft Exchange Server Information Disclosure Vulnerability
Published 2026-06-09 · Analyzed
5.0EPSS 0.006
CVE-1999-1322
The installation of 1ArcServe Backup and Inoculan AV client modules for Exchange create a log file, exchverify.log, which contains usernames and passwords in plaintext.
Published 2001-09-12 · Modified
4.6EPSS 0.015
CVE-2008-1547
Open redirect vulnerability in exchweb/bin/redir.asp in Microsoft Outlook Web Access (OWA) for Exchange Server 2003 SP2 (aka build 6.5.7638) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the URL parameter.
Published 2008-10-21 · Modified
4.31 PoCEPSS 0.481
CVE-2008-2248
Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) for Exchange Server 2003 SP2 allows remote attackers to inject arbitrary web script or HTML via unspecified HTML, a different vulnerability than CVE-2008-2247.
Published 2008-07-08 · Modified
4.3EPSS 0.246
CVE-2008-2247
Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) for Exchange Server 2003 SP2 allows remote attackers to inject arbitrary web script or HTML via unspecified e-mail fields, a different vulnerability than CVE-2008-2248.
Published 2008-07-08 · Modified
4.3EPSS 0.246
CVE-2004-0203
Cross-site scripting (XSS) vulnerability in Outlook Web Access for Exchange Server 5.5 Service Pack 4 allows remote attackers to insert arbitrary script and spoof content in HTML email or web caches via an HTML redirect query.
Published 2004-08-12 · Modified
4.3EPSS 0.210
CVE-2003-0712
Cross-site scripting (XSS) vulnerability in the HTML encoding for the Compose New Message form in Microsoft Exchange Server 5.5 Outlook Web Access (OWA) allows remote attackers to execute arbitrary web script.
Published 2003-10-17 · Modified
4.3EPSS 0.199
CVE-2010-2091
Microsoft Outlook Web Access (OWA) 8.2.254.0, when Internet Explorer 7 on Windows Server 2003 is used, does not properly handle the id parameter in a Folder IPF.Note action to the default URI, which might allow remote attackers to obtain sensitive information or conduct cross-site scripting (XSS) attacks via an invalid value.
Published 2010-05-27 · Modified
4.31 PoCEPSS 0.179
CVE-2005-0563
Cross-site scripting (XSS) vulnerability in Microsoft Outlook Web Access (OWA) component in Exchange Server 5.5 allows remote attackers to inject arbitrary web script or HTML via an email message with an encoded javascript: URL ("jav&#X41sc
ript:") in an IMG tag.
Published 2005-06-14 · Modified
4.3EPSS 0.142
CVE-2015-1764
The web applications in Microsoft Exchange Server 2013 SP1 and Cumulative Update 8 allow remote attackers to bypass the Same Origin Policy and send HTTP traffic to intranet servers via a crafted request, related to a Server-Side Request Forgery (SSRF) issue, aka "Exchange Server-Side Request Forgery Vulnerability."
Published 2015-06-10 · Modified
4.3EPSS 0.135
CVE-2016-0138
Microsoft Exchange Server 2007 SP3, 2010 SP3, 2013 SP1, 2013 Cumulative Update 12, 2013 Cumulative Update 13, 2016 Cumulative Update 1, and 2016 Cumulative Update 2 misparses e-mail messages, which allows remote authenticated users to obtain sensitive Outlook application information by leveraging the Send As right, aka "Microsoft Exchange Information Disclosure Vulnerability."
Published 2016-09-14 · Modified
4.3EPSS 0.135
CVE-2015-1632
Cross-site scripting (XSS) vulnerability in errorfe.aspx in Outlook Web App (OWA) in Microsoft Exchange Server 2013 SP1 and Cumulative Update 7 allows remote attackers to inject arbitrary web script or HTML via the msgParam parameter in an authError action, aka "Exchange Error Message Cross Site Scripting Vulnerability."
Published 2015-03-11 · Modified
4.3EPSS 0.118
CVE-2015-2359
Cross-site scripting (XSS) vulnerability in the web applications in Microsoft Exchange Server 2013 Cumulative Update 8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka "Exchange HTML Injection Vulnerability."
Published 2015-06-10 · Modified
4.3EPSS 0.111
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