Microsoft SharePoint Code Injection Vulnerability (CVE-2025-49704)
Severity: high · Patch status: unpatched · Since 2025-07-22 · CVE-2025-49704
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. CISA added CVE-2025-49704 to its Known Exploited Vulnerabilities catalog on Jul 22, 2025, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Disconnect 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.
- US federal agencies must remediate by Jul 23, 2025 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
