CVE-2026-45454: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Microsoft Microsoft SharePoint Enterprise Server 2016
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-22) in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) involves improper limitation of a pathname to a restricted directory, enabling an authorized attacker to perform remote code execution over a network. The CVSS 3.1 base score is 6.5, indicating medium severity. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An authorized attacker can exploit this path traversal vulnerability to execute code remotely on the affected SharePoint server. This could lead to unauthorized code execution with the privileges of the compromised service, potentially impacting confidentiality but not integrity or availability as per the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided by Microsoft for SharePoint Enterprise Server 2016 version 16.0.0 as detailed in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45454.
CVE-2026-45454: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-22) in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) involves improper limitation of a pathname to a restricted directory, enabling an authorized attacker to perform remote code execution over a network. The CVSS 3.1 base score is 6.5, indicating medium severity. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An authorized attacker can exploit this path traversal vulnerability to execute code remotely on the affected SharePoint server. This could lead to unauthorized code execution with the privileges of the compromised service, potentially impacting confidentiality but not integrity or availability as per the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided by Microsoft for SharePoint Enterprise Server 2016 version 16.0.0 as detailed in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45454.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:06:43.096Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45454","vendor":"Microsoft"}]
Threat ID: 6a284cd78dd33fbd85664bfb
Added to database: 6/9/2026, 5:26:47 PM
Last enriched: 6/9/2026, 10:27:54 PM
Last updated: 6/10/2026, 6:28:26 AM
Views: 5
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