CVE records

Every CVE as the CVE Program publishes it, refreshed every ten minutes, with NVD's analysis, CISA's known-exploited status and a healthcare tag. Subscribers get the CVEs that match their own systems on My program, by email as they are published. Where the data comes from: sources.

Updated under an hour ago ()

What this means for you

This week: 5,432 CVEs published, 355 critical, and 7 newly confirmed exploited. Add your stack to see whether any of them hit you.

Published in the last 7 days
5,432
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Critical, last 7 days
355
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Healthcare-tagged, last 7 days
4
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Known exploited (CISA KEV)
1,747
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Showing CVEs that name the product microsoft:exchange_server. Show all products

54 CVEs, showing 1 to 50Page 1 of 2Next
CVESeverityTitlePublished
CVE-2017-8540
Known exploited
High 7.8The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and…
Assigned by microsoft
May 26, 2017
CVE-2018-8581
Known exploited
High 7.4An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Assigned by microsoft
Nov 14, 2018
CVE-2020-0688
Known exploited
High 8.8A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'.
Assigned by microsoft
Feb 11, 2020
CVE-2020-17144
Known exploited
High 8.4Microsoft Exchange Remote Code Execution Vulnerability
Assigned by microsoft
Dec 9, 2020
CVE-2021-26857
Known exploited
High 7.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Mar 2, 2021
CVE-2021-26855
Known exploited
Critical 9.1Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Mar 2, 2021
CVE-2021-26858
Known exploited
High 7.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Mar 2, 2021
CVE-2021-27065
Known exploited
High 7.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Mar 2, 2021
CVE-2021-31207
Known exploited
Medium 6.6Microsoft Exchange Server Security Feature Bypass Vulnerability
Assigned by microsoft
May 11, 2021
CVE-2021-31196
Known exploited
High 7.2Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Jul 14, 2021
CVE-2021-33766
Known exploited
High 7.3Microsoft Exchange Server Information Disclosure Vulnerability
Assigned by microsoft
Jul 14, 2021
CVE-2021-34473
Known exploited
Critical 9.1Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Jul 14, 2021
CVE-2021-34523
Known exploited
Critical 9.0Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Jul 14, 2021
CVE-2021-42321
Known exploited
High 8.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Nov 10, 2021
CVE-2022-41082
Known exploited
High 8.0Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Oct 3, 2022
CVE-2022-41040
Known exploited
High 8.8Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Oct 3, 2022
CVE-2022-41080
Known exploited
High 8.8Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Nov 9, 2022
CVE-2023-21529
Known exploited
High 8.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Feb 14, 2023
CVE-2024-21410
Known exploited
Critical 9.8Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Feb 13, 2024
CVE-2025-53782High 7.8Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.Oct 14, 2025
CVE-2025-59248High 7.5Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.Oct 14, 2025
CVE-2025-59249High 8.8Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.Oct 14, 2025
CVE-2025-64666High 7.5Improper input validation in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.Dec 9, 2025
CVE-2025-64667Medium 5.3User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.Dec 9, 2025
CVE-2026-21527Medium 6.5User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.Feb 10, 2026
CVE-2026-42897
Known exploited
High 8.1Microsoft Exchange Server Spoofing Vulnerability
Assigned by microsoft
May 14, 2026
CVE-2026-45500Medium 6.1Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.Jun 9, 2026
CVE-2026-45501Medium 6.1Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.Jun 9, 2026
CVE-2026-45502Medium 5.0Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.Jun 9, 2026
CVE-2026-45503Medium 6.5Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.Jun 9, 2026
CVE-2026-45504High 8.8Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.Jun 9, 2026
CVE-2026-45583High 8.1Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.Jun 9, 2026
CVE-2026-47631Medium 5.4Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.Jun 9, 2026
CVE-2026-55005High 8.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Jul 14, 2026
CVE-2026-55006High 7.8Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Jul 14, 2026
CVE-2026-55008Critical 9.6Microsoft Exchange Server Spoofing Vulnerability
Assigned by microsoft
Jul 14, 2026
CVE-2026-55009High 7.8Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Jul 14, 2026
CVE-2026-62910High 7.2Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Aug 11, 2026
CVE-2026-62912Medium 6.5Microsoft Exchange Server Denial of Service Vulnerability
Assigned by microsoft
Aug 11, 2026
CVE-2026-62913High 8.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Aug 11, 2026
CVE-2026-62914High 7.3Microsoft Exchange Server Spoofing Vulnerability
Assigned by microsoft
Aug 11, 2026
CVE-2026-62915Medium 6.5Microsoft Exchange Server Security Feature Bypass Vulnerability
Assigned by microsoft
Aug 11, 2026
CVE-2026-65813Medium 6.5Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Aug 11, 2026
CVE-2026-62911High 8.0Microsoft Exchange Server Elevation of Privilege Vulnerability
Assigned by microsoft
Aug 11, 2026
CVE-2026-55007High 8.1Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Sep 8, 2026
CVE-2026-69355High 8.8Microsoft Exchange Server Remote Code Execution Vulnerability
Assigned by microsoft
Sep 8, 2026
CVE-2026-69356Critical 9.3Microsoft Exchange Server Spoofing Vulnerability
Assigned by microsoft
Sep 8, 2026
CVE-2026-69361Medium 6.5Microsoft Exchange Server Spoofing Vulnerability
Assigned by microsoft
Sep 8, 2026
CVE-2026-69375Medium 6.5Microsoft Exchange Server Tampering Vulnerability
Assigned by microsoft
Sep 8, 2026
CVE-2026-69378High 7.5Microsoft Exchange Server Denial of Service Vulnerability
Assigned by microsoft
Sep 8, 2026
Page 1 of 2Next

CVSS is the assigning CNA's score where it gives one, otherwise NVD's. The healthcare tag is a documented heuristic (a list of clinical and health IT vendors, and clinical terms in the description), not a classification. The CVE record is authoritative.

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