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CVE-2025-49706: Microsoft SharePoint Improper Authentication Vulnerability

Microsoft SharePoint · in CISA KEV since 2025-07-22

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2025-07-22added to KEV

2025-07-23federal remediation due date

99.08%EPSS exploit probability (30 days) 99.9th percentile

6.5 MEDIUMCVSS 3.1

Knownknown ransomware use

14days from NVD publication to KEV

What it is

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. CVE-2025-53771 is a patch bypass for CVE-2025-49706, and the updates for CVE-2025-53771 include more robust protection than those for CVE-2025-49706.

Required action (CISA)

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.

CWE	CWE-287
CVSS vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N`
NVD published	2025-07-08 (Analyzed)

Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2025-49706.json · all KEV CVEs

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