CVE-2026-62917: CWE-20: Improper Input Validation in Microsoft Microsoft SharePoint Enterprise Server 2016
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-62917) involves improper input validation in Microsoft Office SharePoint Enterprise Server 2016 version 16.0.0. The flaw enables an authorized attacker to conduct spoofing attacks over a network, potentially misleading users or systems by presenting false information. The CVSS v3.1 base score is 4.6, reflecting a medium severity with low complexity and limited impact on confidentiality and integrity. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to perform spoofing attacks over a network, which may lead to misleading information being presented to users or systems. The impact on confidentiality and integrity is low, and there is no impact on availability. No known exploits are currently reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62917 to remediate this vulnerability.
CVE-2026-62917: 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 perform spoofing over a network.
CVSS v3.1
Score 4.6medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-62917) involves improper input validation in Microsoft Office SharePoint Enterprise Server 2016 version 16.0.0. The flaw enables an authorized attacker to conduct spoofing attacks over a network, potentially misleading users or systems by presenting false information. The CVSS v3.1 base score is 4.6, reflecting a medium severity with low complexity and limited impact on confidentiality and integrity. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to perform spoofing attacks over a network, which may lead to misleading information being presented to users or systems. The impact on confidentiality and integrity is low, and there is no impact on availability. No known exploits are currently reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62917 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:25:21.036Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62917","vendor":"Microsoft"}]
Threat ID: 6a7b5825bf8831d539156230
Added to database: 08/11/2026, 17:13:09 UTC
Last enriched: 08/11/2026, 20:57:13 UTC
Last updated: 08/12/2026, 01:41:01 UTC
Views: 3
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