CVE-2026-40368: CWE-502: Deserialization of Untrusted Data 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 (CWE-502) in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) arises from improper deserialization of untrusted data. An attacker with authorized access can exploit this flaw to execute arbitrary code remotely, potentially compromising the system. The CVSS 3.1 vector indicates network attack vector, low attack complexity, required privileges, and user interaction. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely, which can lead to full compromise of the affected SharePoint server, impacting confidentiality, integrity, and availability of the system and data.
Mitigation Recommendations
An official patch is available from Microsoft. It is strongly recommended to apply the update provided in the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40368 to remediate this vulnerability.
CVE-2026-40368: CWE-502: Deserialization of Untrusted Data 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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-502) in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0) arises from improper deserialization of untrusted data. An attacker with authorized access can exploit this flaw to execute arbitrary code remotely, potentially compromising the system. The CVSS 3.1 vector indicates network attack vector, low attack complexity, required privileges, and user interaction. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely, which can lead to full compromise of the affected SharePoint server, impacting confidentiality, integrity, and availability of the system and data.
Mitigation Recommendations
An official patch is available from Microsoft. It is strongly recommended to apply the update provided in the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40368 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-11T23:06:15.614Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40368","vendor":"Microsoft"}]
Threat ID: 6a036550cbff5d861008c8fb
Added to database: 5/12/2026, 5:37:20 PM
Last enriched: 5/12/2026, 6:52:52 PM
Last updated: 5/13/2026, 4:57:56 AM
Views: 2
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