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 (CVE-2026-45454) in Microsoft SharePoint Enterprise Server 2016 involves improper limitation of a pathname to a restricted directory (CWE-22), enabling an authorized attacker to execute code remotely over the network. The vulnerability affects version 16.0.0 of the product. Microsoft has published an official fix to address this issue, as detailed in their security advisory.
Potential Impact
An authorized attacker can exploit this path traversal vulnerability to execute code remotely on the affected SharePoint server. The impact is limited to confidentiality as per the CVSS vector (high confidentiality impact, no integrity or availability impact). This could lead to unauthorized disclosure of information.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45454 to remediate this vulnerability.
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
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45454) in Microsoft SharePoint Enterprise Server 2016 involves improper limitation of a pathname to a restricted directory (CWE-22), enabling an authorized attacker to execute code remotely over the network. The vulnerability affects version 16.0.0 of the product. Microsoft has published an official fix to address this issue, as detailed in their security advisory.
Potential Impact
An authorized attacker can exploit this path traversal vulnerability to execute code remotely on the affected SharePoint server. The impact is limited to confidentiality as per the CVSS vector (high confidentiality impact, no integrity or availability impact). This could lead to unauthorized disclosure of information.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45454 to remediate this vulnerability.
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: 06/09/2026, 17:26:47 UTC
Last enriched: 07/29/2026, 21:54:16 UTC
Last updated: 07/31/2026, 20:41:40 UTC
Views: 192
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