CVE-2026-26106: CWE-20: Improper Input Validation in Microsoft Microsoft SharePoint Enterprise Server 2016
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-26106) in Microsoft SharePoint Enterprise Server 2016 stems from improper input validation, classified under CWE-20. It enables an attacker with authorized access to execute arbitrary code remotely, potentially compromising confidentiality, integrity, and availability of the affected system. The CVSS v3.1 score is 8.8, indicating high severity. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
Successful exploitation allows an authorized attacker to execute code remotely on the affected SharePoint server, leading to full compromise of the system's confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the provided security update from the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26106 to remediate this vulnerability.
CVE-2026-26106: 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 execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-26106) in Microsoft SharePoint Enterprise Server 2016 stems from improper input validation, classified under CWE-20. It enables an attacker with authorized access to execute arbitrary code remotely, potentially compromising confidentiality, integrity, and availability of the affected system. The CVSS v3.1 score is 8.8, indicating high severity. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
Successful exploitation allows an authorized attacker to execute code remotely on the affected SharePoint server, leading to full compromise of the system's confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the provided security update from the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26106 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T15:52:13.909Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26106","vendor":"Microsoft"}]
Threat ID: 69b0562fea502d3aa87d6aef
Added to database: 03/10/2026, 17:34:39 UTC
Last enriched: 06/19/2026, 20:29:42 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 210
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