CVE-2025-49706

Microsoft SharePoint Server Spoofing Vulnerability

State: Published
Severity: 6.5 Medium
Published: Jul 8, 2025
Updated: Aug 4, 2026
Reserved: Jun 9, 2025

Description

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

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C	microsoft

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
Microsoft SharePoint Enterprise Server 2016Microsoft	16.0.0 to before 16.0.5508.1000Affected
Microsoft SharePoint Server 2019Microsoft	16.0.0 to before 16.0.10417.20027Affected
Microsoft SharePoint Server Subscription EditionMicrosoft	16.0.0 to before 16.0.18526.20424Affected

References

Microsoft SharePoint Server Spoofing Vulnerabilityvendor-advisorypatch
https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706government-resource

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