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Vulnerabilities

Microsoft Exchange Server

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

271CVEs
CVE-2019-1084
An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with invalid display names, which, when added to conversations, remain invisible. This security update addresses the issue by validating display names upon creation in Microsoft Exchange, and by rendering invalid display names correctly in Microsoft Outlook clients., aka 'Microsoft Exchange Information Disclosure Vulnerability'.
Published 2019-07-15 · Modified
6.5EPSS 0.053
CVE-2021-24085
Microsoft Exchange Server Spoofing Vulnerability
Published 2021-02-25 · Modified
6.5EPSS 0.046
CVE-2019-0588
An information disclosure vulnerability exists when the Microsoft Exchange PowerShell API grants calendar contributors more view permissions than intended, aka "Microsoft Exchange Information Disclosure Vulnerability." This affects Microsoft Exchange Server.
Published 2019-01-08 · Modified
6.5EPSS 0.046
CVE-2022-30134
Microsoft Exchange Server Information Disclosure Vulnerability
Published 2022-08-09 · Modified
6.5EPSS 0.021
CVE-2011-0290
The BlackBerry Collaboration Service in Research In Motion (RIM) BlackBerry Enterprise Server (BES) 5.0.3 through MR4 for Microsoft Exchange and Lotus Domino allows remote authenticated users to log into arbitrary user accounts associated with the same organization, and send messages, read messages, read contact lists, or cause a denial of service (login unavailability), via unspecified vectors.
Published 2011-10-21 · Modified
6.5EPSS 0.021
CVE-2026-62912
Microsoft Exchange Server Denial of Service Vulnerability
Published 2026-08-11 · Analyzed
6.5EPSS 0.020
CVE-2021-41350
Microsoft Exchange Server Spoofing Vulnerability
Published 2021-10-13 · Modified
6.5EPSS 0.019
CVE-2025-25005
Microsoft Exchange Server Tampering Vulnerability
Published 2025-08-12 · Analyzed
6.5EPSS 0.015
CVE-2026-69361
Microsoft Exchange Server Spoofing Vulnerability
Published 2026-09-08 · Analyzed
6.5EPSS 0.008
CVE-2026-62915
Microsoft Exchange Server Security Feature Bypass Vulnerability
Published 2026-08-11 · Analyzed
6.5EPSS 0.006
CVE-2026-69375
Microsoft Exchange Server Tampering Vulnerability
Published 2026-09-08 · Analyzed
6.5EPSS 0.006
CVE-2026-45501
Microsoft Exchange Server Spoofing Vulnerability
Published 2026-06-09 · Modified
6.5EPSS 0.004
CVE-2002-0049
Microsoft Exchange Server 2000 System Attendant gives "Everyone" group privileges to the WinReg key, which could allow remote attackers to read or modify registry keys.
Published 2002-06-25 · Modified
6.4EPSS 0.133
CVE-2010-1689
The DNS implementation in smtpsvc.dll before 6.0.2600.5949 in Microsoft Windows 2000 SP4 and earlier, Windows XP SP3 and earlier, Windows Server 2003 SP2 and earlier, Windows Server 2008 SP2 and earlier, Windows Server 2008 R2, Exchange Server 2003 SP3 and earlier, Exchange Server 2007 SP2 and earlier, and Exchange Server 2010 uses predictable transaction IDs that are formed by incrementing a previous ID by 1, which makes it easier for man-in-the-middle attackers to spoof DNS responses, a different vulnerability than CVE-2010-0024 and CVE-2010-0025.
Published 2010-05-07 · Modified
6.4EPSS 0.066
CVE-2010-1690
The DNS implementation in smtpsvc.dll before 6.0.2600.5949 in Microsoft Windows 2000 SP4 and earlier, Windows XP SP3 and earlier, Windows Server 2003 SP2 and earlier, Windows Server 2008 SP2 and earlier, Windows Server 2008 R2, Exchange Server 2003 SP3 and earlier, Exchange Server 2007 SP2 and earlier, and Exchange Server 2010 does not verify that transaction IDs of responses match transaction IDs of queries, which makes it easier for man-in-the-middle attackers to spoof DNS responses, a different vulnerability than CVE-2010-0024 and CVE-2010-0025.
Published 2010-05-07 · Modified
6.4EPSS 0.066
CVE-2020-17085
Microsoft Exchange Server Denial of Service Vulnerability
Published 2020-11-11 · Modified
6.2EPSS 0.036
CVE-2016-3379
Cross-site scripting (XSS) vulnerability in Microsoft Exchange Server 2016 Cumulative Update 1 and 2 allows remote attackers to inject arbitrary web script or HTML via a meeting-invitation request, aka "Microsoft Exchange Elevation of Privilege Vulnerability."
Published 2016-09-14 · Modified
6.1EPSS 0.082
CVE-2017-0110
Cross-site scripting (XSS) vulnerability in Microsoft Exchange Outlook Web Access (OWA) allows remote attackers to inject arbitrary web script or HTML via a crafted email or chat client, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability."
Published 2017-03-17 · Modified
6.1EPSS 0.079
CVE-2016-0031
Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) in Microsoft Exchange Server 2016 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Exchange Spoofing Vulnerability," a different vulnerability than CVE-2016-0029.
Published 2016-01-13 · Modified
6.1EPSS 0.076
CVE-2016-0029
Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) in Microsoft Exchange Server 2016 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Exchange Spoofing Vulnerability," a different vulnerability than CVE-2016-0031.
Published 2016-01-13 · Modified
6.1EPSS 0.076
CVE-2016-0030
Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) in Microsoft Exchange Server 2013 PS1, 2013 Cumulative Update 10, and 2016 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Exchange Spoofing Vulnerability."
Published 2016-01-13 · Modified
6.1EPSS 0.076
CVE-2016-0032
Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) in Microsoft Exchange Server 2013 PS1, 2013 Cumulative Update 10, 2013 Cumulative Update 11, and 2016 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Exchange Spoofing Vulnerability."
Published 2016-01-13 · Modified
6.1EPSS 0.076
CVE-2017-8559
Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5 allows an elevation of privilege vulnerability due to the way that Exchange Outlook Web Access (OWA) handles web requests, aka "Microsoft Exchange Cross-Site Scripting Vulnerability". This CVE ID is unique from CVE-2017-8560.
Published 2017-07-11 · Modified
6.1EPSS 0.034
CVE-2017-8560
Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5 allows an elevation of privilege vulnerability due to the way that Exchange Outlook Web Access (OWA) handles web requests, aka "Microsoft Exchange Cross-Site Scripting Vulnerability". This CVE ID is unique from CVE-2017-8559.
Published 2017-07-11 · Modified
6.1EPSS 0.034
CVE-2017-8758
Microsoft Exchange Server 2016 allows an elevation of privilege vulnerability when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Cross-Site Scripting Vulnerability."
Published 2017-09-13 · Modified
6.1EPSS 0.034
CVE-2017-8621
Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5 allows an open redirect vulnerability that could lead to spoofing, aka "Microsoft Exchange Open Redirect Vulnerability".
Published 2017-07-11 · Modified
6.1EPSS 0.032
CVE-2019-0858
A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0817.
Published 2019-04-09 · Modified
6.1EPSS 0.021
CVE-2019-1266
A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'.
Published 2019-09-11 · Modified
6.1EPSS 0.020
CVE-2026-45500
Microsoft Exchange Server Spoofing Vulnerability
Published 2026-06-09 · Analyzed
6.1EPSS 0.004
CVE-2003-0904
Microsoft Exchange 2003 and Outlook Web Access (OWA), when configured to use NTLM authentication, does not properly reuse HTTP connections, which can cause OWA users to view mailboxes of other users when Kerberos has been disabled as an authentication method for IIS 6.0, e.g. when SharePoint Services 2.0 is installed.
Published 2004-01-08 · Modified
6.0EPSS 0.081
CVE-2026-69382
Microsoft Exchange Server Information Disclosure Vulnerability
Published 2026-09-08 · Analyzed
5.9EPSS 0.005
CVE-2005-0420
Microsoft Outlook Web Access (OWA), when used with Exchange, allows remote attackers to redirect users to arbitrary URLs for login via a link to the owalogon.asp application.
Published 2005-02-15 · Modified
5.81 PoCEPSS 0.256
CVE-2018-8152
An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Published 2018-05-09 · Modified
5.8EPSS 0.035
CVE-2018-8159
An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Published 2018-05-09 · Modified
5.8EPSS 0.035
CVE-2018-8153
A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Spoofing Vulnerability." This affects Microsoft Exchange Server.
Published 2018-05-09 · Modified
5.8EPSS 0.034
CVE-2018-8448
An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Published 2018-10-10 · Modified
5.8EPSS 0.032
CVE-2019-0817
A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.
Published 2019-04-09 · Modified
5.8EPSS 0.023
CVE-2021-1730
Microsoft Exchange Server Spoofing Vulnerability
Published 2021-02-25 · Modified
5.8EPSS 0.018
CVE-2023-36777
Microsoft Exchange Server Information Disclosure Vulnerability
Published 2023-09-12 · Modified
5.7EPSS 0.520
CVE-2022-21979
Microsoft Exchange Server Information Disclosure Vulnerability
Published 2022-08-09 · Modified
5.7EPSS 0.022
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