CVE-2025-49704
Microsoft SharePoint Code Injection Vulnerability
Microsoft SharePointApplications & CMS
CVSS
8.8HighExploit odds (EPSS)>99.9%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
CISA required actionDisconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available. CISA KEV
What fixes it
- 16.0.5508.1000Microsoft SharePoint Enterprise Server 2016CVE List
- 16.0.10417.20027Microsoft SharePoint Server 2019CVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Timeline
- 8 Jul 2025Exploit code publicMetasploit
- 8 Jul 2025, 16:58 UTCPublishedCVE List
- 22 Jul 2025Added to CISA KEVCISA KEV
Public exploit code and templates 1
- Exploit moduleMicrosoft SharePoint Server ToolPane Unauthenticated Remote Code Execution (aka ToolShell) 8 Jul 2025Metasploit
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
Microsoft SharePoint contains a code injection vulnerability that could allow an authorized attacker to execute code over a network. This vulnerability could be chained with CVE-2025-49706. CVE-2025-53770 is a patch bypass for CVE-2025-49704, and the updates for CVE-2025-53770 include more robust protection than those for CVE-2025-49704.
Text from CVE List
Affected versions 2
- Microsoft SharePoint Enterprise Server 2016affected: 16.0.0 before 16.0.5508.1000CVE List
- Microsoft SharePoint Server 2019affected: 16.0.0 before 16.0.10417.20027CVE List
References 4
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49704Fixvia CVE List
- microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/Advisoryvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2025-49704Referencevia CISA KEV
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49704Referencevia CVE List