Which products and versions are affected by CVE-2025-49706?

Affected: Sharepoint Enterprise Server (Microsoft) versions 2016; Sharepoint Server (Microsoft) versions 2019; Microsoft SharePoint Enterprise Server 2016 versions >= 16.0.0, among others. The full list is in the CVE brief.

Is CVE-2025-49706 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 18, 2025 and is known to be used in ransomware campaigns.

Is CVE-2025-49706 in the CISA KEV catalog?

Yes. It was added on Jul 22, 2025 with a federal remediation due date of Jul 23, 2025.

Is there a public exploit for CVE-2025-49706?

Public exploit code is available.

How urgently should CVE-2025-49706 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2025-49706

MediumExploitedPublic exploit

Microsoft SharePoint Server Spoofing Vulnerability

Published Jul 8, 2025 · Updated Aug 4, 2026

Key Facts

Patch immediately

CVE-2025-49706 is a medium-severity vulnerability (CVSS 6.5 v3.1) affecting Sharepoint Enterprise Server (Microsoft), Sharepoint Server (Microsoft), Microsoft SharePoint Enterprise Server 2016 and 2 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 18, 2025 and is known to be used in ransomware campaigns. Public exploit code is available.
EPSS estimates a 99% probability of exploitation in the next 30 days.
Fixed versions are available, including Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000, Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Server 2019 16.0.10417.20027.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS (30-day exploit likelihood)

99%

Higher than 99.9% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2025-49706 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

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

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Jul 22, 2025	Jul 23, 2025	Known
Industry KEV feed	Jul 18, 2025	Jul 23, 2025	Known
CIRCL KEV	Jul 22, 2025	Jul 23, 2025	Known
ENISA EUVD	Jul 22, 2025	n/a	Not reported

Required action: Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.

Affected Products

6 affected entries in total

Product	Affected versions	Fixed in
Sharepoint Enterprise ServerMicrosoft	2016	n/a
Sharepoint ServerMicrosoft	2019	16.0.18526.20424
Microsoft SharePoint Enterprise Server 2016	>= 16.0.0	16.0.5508.1000
Microsoft SharePoint Server 2019	>= 16.0.0	16.0.10417.20027
Microsoft SharePoint Server Subscription Edition	>= 16.0.0	16.0.18526.20424

Patched Releases

Microsoft SharePoint Enterprise Server 2016

16.0.5508.1000

Sharepoint Server

16.0.18526.20424

Microsoft SharePoint Server 2019

16.0.10417.20027

Microsoft SharePoint Server Subscription Edition

16.0.18526.20424

Timeline

Publicly disclosed
Jul 8, 2025
Added to Industry KEV feed
Jul 18, 2025
Added to CISA KEV
Jul 22, 2025
Added to CIRCL KEV
Jul 22, 2025
Added to ENISA EUVD
Jul 22, 2025
Last updated
Aug 4, 2026

Weakness Type

CWE-287 Improper Authentication

References

advisoryMicrosoft SharePoint Server Spoofing Vulnerability
advisoryVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitMSF sharepoint_toolpane_rce.rb
exploitVulnCheck exploitation report

8 more references in the full CVE brief

FAQ

Common Questions.

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Affected: Sharepoint Enterprise Server (Microsoft) versions 2016; Sharepoint Server (Microsoft) versions 2019; Microsoft SharePoint Enterprise Server 2016 versions >= 16.0.0, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 18, 2025 and is known to be used in ransomware campaigns.
Yes. It was added on Jul 22, 2025 with a federal remediation due date of Jul 23, 2025.
Public exploit code is available.
Fixed versions are available, including Microsoft SharePoint Enterprise Server 2016 16.0.5508.1000, Sharepoint Server 16.0.18526.20424, Microsoft SharePoint Server 2019 16.0.10417.20027.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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