CVE-2025-53770 - PatchNow

Data Source: CIRCL

Confidence: HIGH

Exploitation Method: DIRECT_NETWORK

CVE Published: 2025-07-20

Added to CISA KEV: 2025-07-20 0 DAY BETWEEN CVE AND KEV

Apply Microsoft's interim mitigation immediately while awaiting comprehensive patch
Block external access to SharePoint servers if not business-critical
Monitor for indicators of compromise and unusual SharePoint activity
Use Microsoft Defender EASM to identify exposed SharePoint instances
Implement network segmentation to limit SharePoint server exposure
HIGHEST patch priority when comprehensive update becomes available

Proactive Security Insights for SharePoint Attacks (CVE-2025-53770 ...
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Customer guidance for SharePoint vulnerability CVE-2025-53770
Microsoft is aware of active attacks targeting on-premises SharePoint Server customers by exploiting vulnerabilities partially addressed by the ...
Disrupting active exploitation of on-premises SharePoint ... - Microsoft
Microsoft has released security updates that fully protect customers using all supported versions of SharePoint affected by CVE-2025-53770 and ...
Critical SharePoint RCE: CVE-2025-53770 and the Perils of ...
A critical deserialization flaw (CVE-2025-53770) in Microsoft SharePoint Server is being actively exploited, enabling remote code execution by unauthenticated attackers. This post dissects the technical root cause, affected versions, and exploitation vectors for security teams.
cve-2025-53770 sharepoint rce vulnerability exposed
CVE-2025-53770 is a critical sharepoint rce flaw actively exploited. Learn about risks, attack vectors, iocs, and patching strategies now.

🔴 CVE-2025-53770