SharePoint Flaw Initially Listed as Spoofing by Microsoft Enables Authenticated RCE
Summary
A SharePoint Server vulnerability, initially misclassified by Microsoft as a spoofing flaw, has been found to enable authenticated remote code execution. The flaw, identified as CVE-2026-65660, affects multiple versions of SharePoint Server, and patches have been released.
IFF Assessment
FOE
This vulnerability allows authenticated attackers to execute arbitrary code on affected systems, posing a significant risk to organizations using vulnerable SharePoint versions.
Severity
8.8
High
Defender Context
Defenders need to prioritize patching SharePoint Servers to mitigate the risk of authenticated RCE. This incident highlights the importance of verifying vendor vulnerability classifications and understanding the true impact of flaws, as initial assessments can sometimes underestimate the severity.