CVE-2025-21393
Microsoft SharePoint Server Spoofing Vulnerability
MEDIUM
6.3
CVSS Score
Published: January 14, 2025 at 06:04 PM UTC
Updated: June 17, 2026 at 08:43 AM UTC
4 products affected across 1 vendorSharePoint ServerSharePoint Server 2019SharePoint Enterprise Server 2016
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Severity
MEDIUM6.3
Exploit prediction
EPSS 1%
SSVC
No known exploit
Description
Microsoft SharePoint Server Spoofing Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 16.0.17928.20356, so it looks safe — our inference, not a vendor statement
16.0.0 ≤ v < 16.0.5483.100116.0.0
Affected range stops below 16.0.5483.1001, so it looks safe — our inference, not a vendor statement
16.0.0 ≤ v < 16.0.10416.2004116.0.0
Affected range stops below 16.0.10416.20041, so it looks safe — our inference, not a vendor statement
16.0.0 ≤ v < 16.0.17928.2035616.0.0
Affected range stops below 16.0.17928.20356, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21393SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.3MEDIUMmicrosoft
Vector?
Quick Info
StatusANALYZED
CWE
CWE-79NVD-CWE-noinfo
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