CVE-2025-25005: Microsoft Exchange Server Tampering Vulnerability

Published Aug 12, 2025
·
Updated

Improper input validation in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.

Other sources

Microsoft Exchange Server Tampering Vulnerability

Microsoft

Affected Software

42 affected componentsFixes available
Microsoft Exchange Server Subscription Edition RTM
Microsoft Exchange Server 2016=23
Microsoft Exchange Server 2019=15
Microsoft Exchange Server 2019=14
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<15.02.2562.020

Event History

Aug 12, 2025
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Description
CVE Published
via MITRE·05:09 PM
Data Sourced
via MITRE·05:09 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-25005?

CVE-2025-25005 is considered a high severity vulnerability due to the potential for authorized attackers to tamper with data over the network.

2

How do I fix CVE-2025-25005?

To fix CVE-2025-25005, apply the latest patches released by Microsoft for your version of Exchange Server.

3

Which versions of Exchange Server are affected by CVE-2025-25005?

CVE-2025-25005 affects Microsoft Exchange Server Subscription Edition RTM, Exchange Server 2016, and Exchange Server 2019.

4

What type of vulnerability is CVE-2025-25005?

CVE-2025-25005 is an improper input validation vulnerability that allows attackers to perform unauthorized tampering.

5

Who is responsible for addressing the CVE-2025-25005 vulnerability?

It is the responsibility of system administrators and organizations using the affected versions of Microsoft Exchange Server to address CVE-2025-25005.

Contact

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