CVE-2026-47641: CWE-20: Improper Input Validation in Microsoft Microsoft SharePoint Enterprise Server 2016
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) stems from improper input validation, classified under CWE-20. It enables an attacker with authorized access to conduct spoofing attacks over the network. The CVSS v3.1 base score is 4.6, indicating medium severity with low impact on confidentiality and integrity and no impact on availability. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
An authorized attacker can exploit this vulnerability to perform spoofing attacks, potentially misleading users or systems by presenting false information. The impact on confidentiality and integrity is limited, and there is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the vendor-provided patch as soon as possible. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47641 for detailed remediation instructions.
CVE-2026-47641: CWE-20: Improper Input Validation in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVSS v3.1
Score 4.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) stems from improper input validation, classified under CWE-20. It enables an attacker with authorized access to conduct spoofing attacks over the network. The CVSS v3.1 base score is 4.6, indicating medium severity with low impact on confidentiality and integrity and no impact on availability. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
An authorized attacker can exploit this vulnerability to perform spoofing attacks, potentially misleading users or systems by presenting false information. The impact on confidentiality and integrity is limited, and there is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the vendor-provided patch as soon as possible. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47641 for detailed remediation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-19T20:12:27.070Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47641","vendor":"Microsoft"}]
Threat ID: 6a284cf08dd33fbd85665067
Added to database: 06/09/2026, 17:27:12 UTC
Last enriched: 07/29/2026, 22:06:20 UTC
Last updated: 07/31/2026, 21:26:45 UTC
Views: 51
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