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Vulnerabilities

Vulnerability · CVE-2025-62204

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Published Nov 11, 2025 · catalog updated Feb 26, 2026 · Microsoft Microsoft SharePoint Enterprise Server 2016

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-62204. EPSS is 2.21%. Act only if a listed version of Microsoft Microsoft SharePoint Enterprise Server 2016 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.21%
Remediation
Version ranges on file
Affected products
cpe microsoft/sharepoint server · vendor Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 <16.0.5526.1001

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/sharepoint server2016
  • cpe microsoft/sharepoint server2019
  • cpe microsoft/sharepoint server< 16.0.19127.20338
  • vendor Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 <16.0.5526.100116.0.0 <16.0.5526.1001

How to fix CVE-2025-62204

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-62204. EPSS is 2.21%. Act only if a listed version of Microsoft Microsoft SharePoint Enterprise Server 2016 is installed.

Which versions are affected?

Compare what you have installed with microsoft/sharepoint server 2016; microsoft/sharepoint server 2019; microsoft/sharepoint server < 16.0.19127.20338; Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 <16.0.5526.1001 16.0.0 <16.0.5526.1001. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-502: Deserialization of Untrusted Data. EPSS 2.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Microsoft SharePoint security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 11, 2025 · EUVD

    Detected

    Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

  2. Feb 26, 2026 · EUVD

    Updated

    Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Sources

  • CVE.orgVulnerability recordCVE-2025-62204

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-93404

    Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

    euvd.enisa.europa.eu
  • Monitored products — criticalVendor advisoryCVE-2025-62204

    Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Monitored products — criticalNov 2, 2026
  • CVE.orgOct 24, 2026
  • EUVDOct 24, 2026