THREATPORT/VULNERABILITY/CVE-2025-21400
HIGH SEVERITY

CVE-2025-21400

Sharepoint Server vulnerability

CVSS
8.0
EPSS
34.5%
EPSS pct
98th
Exploited
No known
Microsoft SharePoint Server Remote Code Execution Vulnerability
Affected vendor
Microsoft
Affected product
Sharepoint Server
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2025-02-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 34.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2025-21400

  • Confirm whether Microsoft Sharepoint Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-21400.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-21400

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-21400 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2025-21400?

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