CVE-2026-62839: CWE-522: Insufficiently Protected Credentials in Microsoft Microsoft SharePoint Enterprise Server 2016
Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-62839) involves insufficient protection of credentials in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0). An authorized attacker could exploit this weakness to perform spoofing attacks over a network. The vulnerability is classified under CWE-522 (Insufficiently Protected Credentials). Microsoft has published an official fix to remediate this issue.
Potential Impact
The vulnerability allows an authorized attacker to spoof network communications by exploiting insufficiently protected credentials. This could lead to unauthorized access or impersonation within the affected SharePoint environment. There is no indication of impact on integrity or availability, and no known exploits are reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the provided patch as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62839 to remediate the issue.
CVE-2026-62839: CWE-522: Insufficiently Protected Credentials in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-62839) involves insufficient protection of credentials in Microsoft SharePoint Enterprise Server 2016 (version 16.0.0). An authorized attacker could exploit this weakness to perform spoofing attacks over a network. The vulnerability is classified under CWE-522 (Insufficiently Protected Credentials). Microsoft has published an official fix to remediate this issue.
Potential Impact
The vulnerability allows an authorized attacker to spoof network communications by exploiting insufficiently protected credentials. This could lead to unauthorized access or impersonation within the affected SharePoint environment. There is no indication of impact on integrity or availability, and no known exploits are reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users of Microsoft SharePoint Enterprise Server 2016 version 16.0.0 should apply the provided patch as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62839 to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:10:38.083Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62839","vendor":"Microsoft"}]
Threat ID: 6a7b581cbf8831d539156081
Added to database: 08/11/2026, 17:13:00 UTC
Last enriched: 08/11/2026, 21:13:23 UTC
Last updated: 08/11/2026, 23:42:07 UTC
Views: 3
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