CVE-2025-21400

highpriority · track · 12EPSS 0.342 · 98 %ileDEEUNLRUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

34.2% (98th) EPSS

CVSS 8 · high

Is it mine?

31 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Microsoft SharePoint Server Remote Code Execution Vulnerability

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft SharePoint Enterprise Server 2016msrc_csaf
16.0.5487.1000:Security Update:https://support.microsoft.com/help/5002685
https://support.microsoft.com/help/5002685
FixedMicrosoft SharePoint Server 2019msrc_csaf
16.0.10416.20050:Security Update:https://support.microsoft.com/help/5002678
https://support.microsoft.com/help/5002678
FixedMicrosoft SharePoint Server Subscription Editionmsrc_csaf
16.0.17928.20396:Security Update:https://support.microsoft.com/help/5002681
https://support.microsoft.com/help/5002681

cvss

Technical severity, 0–10. One row per scoring source.

8.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18highAV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.18highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 2.1 · impact 5.9

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-285USCWE-285USCWE-285USCWE-285US

affected products (31)

Products and version ranges known to be affected.

Microsoft 365 Appsall versionscert_bundDEcpe:/a:microsoft:365_apps:-
Microsoft Excel 2016all versionscert_bundDEcpe:/a:microsoft:excel_2016:-
Microsoft Office 2016all versionscert_bundDEcpe:/a:microsoft:office_2016:-
Microsoft Office 2019all versionscert_bundDEcpe:/a:microsoft:office_2019:-
Microsoft Office LTSC 2021all versionscert_bundDEcpe:/a:microsoft:office:ltsc_2021
Microsoft Office LTSC 2024all versionscert_bundDEcpe:/a:microsoft:office:ltsc_2024
Microsoft Office LTSC for Mac 2021all versionscert_bundDEcpe:/a:microsoft:office:ltsc_for_mac_2021
Microsoft Office LTSC for Mac 2024all versionscert_bundDEcpe:/a:microsoft:office:ltsc_for_mac_2024
Microsoft Office Online Serverall versionscert_bundDEcpe:/a:microsoft:office_online_server:-
Microsoft SharePoint Enterprise Server 2016all versionscert_bundDEcpe:/a:microsoft:sharepoint:enterprise_server_2016
Microsoft SharePoint Server 2019all versionscert_bundDEcpe:/a:microsoft:sharepoint_server_2019:-
Microsoft SharePoint Server Subscription Editionall versionscert_bundDEcpe:/a:microsoft:sharepoint:server_subscription_edition
Microsoft Microsoft SharePoint Enterprise Server 201616.0.0 → 16.0.5487.1000enisa_euvdEU
Microsoft Microsoft SharePoint Server 201916.0.0 → 16.0.10416.20050enisa_euvdEU
Microsoft Microsoft SharePoint Server Subscription Edition16.0.0 → 16.0.17928.20396enisa_euvdEU
Microsoft Corp Microsoft SharePoint≤ Server Subscription Editionfstec_bduRU
Microsoft Corp Microsoft SharePoint≤ Server 2019fstec_bduRU
Microsoft Corp Microsoft SharePoint≤ Enterprise Server 2016fstec_bduRU
Microsoft SharePoint Enterprise Server 2016all versionsfixedmsrc_csafUS
Microsoft SharePoint Enterprise Server 2016< 16.0.5487.1000msrc_csafUS

showing 20 of 31

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2025-0050Kwetsbaarheden verholpen in Microsoft OfficeNL2025-02-11csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in diverse Office producten.
WID-SEC-W-2025-0350Microsoft Office: Mehrere SchwachstellenDeutsch2025-02-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Excel 2016, Microsoft Office 2016, Microsoft Office Online Server, Microsoft SharePoint, Microsoft Office 2019, Microsoft SharePoint Server 2019, Microsoft 365 Apps und Microsoft Office ausnutzen, um beliebigen Code auszuführen, sich erhöhte Rechte zu verschaffen und vertrauliche Informationen preiszugeben.
msrc_CVE-2025-21400Microsoft SharePoint Server Remote Code Execution Vulnerability2025-02-11csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf ncsc_nl NVD CVE.org MITRE

published 2025-02-11modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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