Jul 2025: Microsoft SharePoint Server Spoofing Vulnerability: CVE-2025-49706 July 2025

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

Known Exploited Vulnerability

This Microsoft SharePoint Improper Authentication Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft SharePoint contains an improper authentication vulnerability that allows an authorized attacker to perform spoofing over a network. Successfully exploitation could allow an attacker to view sensitive information and make some changes to disclosed information. This vulnerability could be chained with CVE-2025-49704. The update for CVE-2025-53771 includes more robust protections than the update for CVE-2025-49706.

The following remediation steps are recommended / required by July 23, 2025: CISA recommends disconnecting public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS). For example, SharePoint Server 2013 and earlier versions are end-of-life and should be discontinued if still

Weakness Type

What is an authentification Vulnerability?

When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

CVE-2025-49706 has been classified to as an authentification vulnerability or weakness.

Products Associated with CVE-2025-49706

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Affected Versions

Exploit Probability

EPSS

62.62%

Percentile

98.33%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.