CVE-2026-47294: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Microsoft Microsoft SharePoint Enterprise Server 2016
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-47294) affects Microsoft SharePoint Enterprise Server 2016 version 16.0.0. It is classified as CWE-78, indicating improper neutralization of special elements used in OS command injection. The flaw stems from deserialization of untrusted data, which can be exploited by an authorized attacker to execute arbitrary code remotely. The CVSS v3.1 base score is 8.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely on the affected SharePoint server, potentially leading to full compromise of confidentiality, integrity, and availability of the system. This can result in unauthorized control over the server and disruption of services.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the provided security update from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47294 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-47294: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.0high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-47294) affects Microsoft SharePoint Enterprise Server 2016 version 16.0.0. It is classified as CWE-78, indicating improper neutralization of special elements used in OS command injection. The flaw stems from deserialization of untrusted data, which can be exploited by an authorized attacker to execute arbitrary code remotely. The CVSS v3.1 base score is 8.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely on the affected SharePoint server, potentially leading to full compromise of confidentiality, integrity, and availability of the system. This can result in unauthorized control over the server and disruption of services.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the provided security update from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47294 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-18T23:53:33.897Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47294","vendor":"Microsoft"}]
Threat ID: 6a1de30be29bf47b503a571a
Added to database: 6/1/2026, 7:52:43 PM
Last enriched: 6/1/2026, 7:55:43 PM
Last updated: 6/2/2026, 6:44:02 AM
Views: 12
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