CVE-2026-62914: Microsoft Exchange Server Spoofing Vulnerability

Published Aug 11, 2026
·
Updated

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.

Other sources

Microsoft Exchange Server Spoofing Vulnerability

Microsoft

Affected Software

43 affected componentsFixes available
Microsoft Exchange Server
Microsoft Exchange Server 2016=23
15.01.2507.072
Microsoft Exchange Server 2019=15
15.02.1748.049
Microsoft Exchange Server Subscription Edition RTM<15.02.2562.046
15.02.2562.046
Microsoft Exchange Server 2019=14
15.02.1544.044
Microsoft Exchange Server=2016
Microsoft Exchange Server=2016-cumulative_update_1
Microsoft Exchange Server=2016-cumulative_update_10
Microsoft Exchange Server=2016-cumulative_update_11
Microsoft Exchange Server=2016-cumulative_update_12
Microsoft Exchange Server=2016-cumulative_update_13
Microsoft Exchange Server=2016-cumulative_update_14
Microsoft Exchange Server=2016-cumulative_update_15
Microsoft Exchange Server=2016-cumulative_update_16
Microsoft Exchange Server=2016-cumulative_update_17
Microsoft Exchange Server=2016-cumulative_update_18
Microsoft Exchange Server=2016-cumulative_update_19
Microsoft Exchange Server=2016-cumulative_update_2
Microsoft Exchange Server=2016-cumulative_update_20
Microsoft Exchange Server=2016-cumulative_update_21
Microsoft Exchange Server=2016-cumulative_update_22
Microsoft Exchange Server=2016-cumulative_update_3
Microsoft Exchange Server=2016-cumulative_update_4
Microsoft Exchange Server=2016-cumulative_update_5
Microsoft Exchange Server=2016-cumulative_update_6
Microsoft Exchange Server=2016-cumulative_update_7
Microsoft Exchange Server=2016-cumulative_update_8
Microsoft Exchange Server=2016-cumulative_update_9
Microsoft Exchange Server=2019
Microsoft Exchange Server=2019-cumulative_update_1
Microsoft Exchange Server=2019-cumulative_update_10
Microsoft Exchange Server=2019-cumulative_update_11
Microsoft Exchange Server=2019-cumulative_update_12
Microsoft Exchange Server=2019-cumulative_update_13
Microsoft Exchange Server=2019-cumulative_update_2
Microsoft Exchange Server=2019-cumulative_update_3
Microsoft Exchange Server=2019-cumulative_update_4
Microsoft Exchange Server=2019-cumulative_update_5
Microsoft Exchange Server=2019-cumulative_update_6
Microsoft Exchange Server=2019-cumulative_update_7
Microsoft Exchange Server=2019-cumulative_update_8
Microsoft Exchange Server=2019-cumulative_update_9
Microsoft Exchange Server Subscription Edition<15.02.2562.046

Event History

Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:04 PM
Data Sourced
via MITRE·05:04 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-62914?

CVE-2026-62914 has a severity rating of 7.3, indicating a high risk.

2

How can I mitigate CVE-2026-62914 in my environment?

Mitigating CVE-2026-62914 involves applying security updates provided by Microsoft for affected Exchange Server versions.

3

What impact does CVE-2026-62914 have on Microsoft Exchange Server?

CVE-2026-62914 allows an authorized attacker to perform spoofing attacks through improper input handling, affecting the integrity of communications.

4

Which versions of Microsoft Exchange Server are affected by CVE-2026-62914?

CVE-2026-62914 affects Microsoft Exchange Server 2016, 2019, and the Subscription Edition RTM.

5

What is the nature of the vulnerability in CVE-2026-62914?

CVE-2026-62914 is a cross-site scripting (XSS) vulnerability that arises from improper neutralization of input during web page generation.

Contact

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