CVE-2025-53771: Microsoft SharePoint Server Spoofing Vulnerability

Published Jul 20, 2025
·
Updated

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

Other sources

Microsoft SharePoint Server Spoofing Vulnerability

Microsoft

Affected Software

6 affected componentsFixes available
Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Server 2019
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Server<16.0.18526.20508
Microsoft SharePoint Server=2016
Microsoft SharePoint Server=2019

Event History

Dec 4, 2023
News Published
06:01 AM
Dec 18, 2023
News Published
02:25 AM
Jan 15, 2024
News Published
03:34 PM
Apr 29, 2024
News Published
02:29 AM
May 6, 2024
News Published
02:30 AM
May 13, 2024
News Published
02:21 AM
Jun 3, 2024
News Published
12:02 PM
Jul 1, 2024
News Published
03:35 AM
Jul 22, 2024
News Published
03:44 AM
Sep 30, 2024
News Published
03:02 AM
Nov 11, 2024
News Published
03:28 AM
Feb 10, 2025
News Published
02:30 AM
Mar 3, 2025
News Published
03:31 AM
Mar 10, 2025
News Published
01:56 AM
Jul 13, 2025
News Published
11:46 PM
Jul 20, 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
News Published
via BleepingComputer·03:40 PM
CVE Published
via MITRE·10:16 PM
Data Sourced
via MITRE·10:16 PM
DescriptionSeverity
Data Sourced
via NVD·11:15 PM
DescriptionSeverityWeaknessAffected Software
Jul 21, 2025
News Published
12:13 AM
News Published
02:05 PM
News Published
via ZDNet·02:05 PM
News Published
via Dark Reading·02:37 PM
News Published
via ZDNet·02:57 PM
Jul 22, 2025
News Published
via BleepingComputer·11:26 AM
News Published
via BleepingComputer·11:28 AM
News Published
via The Register·02:32 PM
News Published
via The Register·02:37 PM
News Published
via The Register·04:40 PM
Jul 23, 2025
News Published
via ZDNet·02:23 PM
News Published
via The Register·06:05 PM
Jul 24, 2025
News Published
via The Register·04:54 PM
Jul 26, 2025
News Published
via The Register·11:28 AM
Aug 4, 2025
News Published
via BleepingComputer·11:26 AM
Aug 7, 2025
News Published
via The Register·02:30 PM
Sep 8, 2025
News Published
via The Register·11:46 AM
May 12, 2026
News Published
via Dark Reading·10:20 AM

Frequently Asked Questions

1

What is the severity of CVE-2025-53771?

CVE-2025-53771 is rated as critical due to its potential to allow spoofing attacks by authorized users.

2

How do I fix CVE-2025-53771?

To fix CVE-2025-53771, apply the latest security updates provided by Microsoft for the affected versions of SharePoint.

3

Which versions of SharePoint are affected by CVE-2025-53771?

CVE-2025-53771 affects Microsoft SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint Enterprise Server 2016.

4

What is the impact of CVE-2025-53771 on SharePoint Server?

CVE-2025-53771 allows an authorized attacker to perform spoofing over a network, compromising the integrity of SharePoint applications.

5

Is public information available about CVE-2025-53771?

Yes, Microsoft has released public information and updates regarding CVE-2025-53771 in their security update guide.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203