cve 2026 56649

The cve 2026 56649 tag covers Microsoft’s July 14 security updates for a remote code execution vulnerability in Windows Network File System components. The issue affects a broad range of supported Windows client and server releases, with particular relevance for Windows Server systems that run or may run NFS services for Unix or Linux file sharing. Coverage focuses on the vulnerability’s Microsoft Security Update Guide classification, its presence in the National Vulnerability Database, and the recommendation to prioritize deployment of the applicable July cumulative updates. Administrators can use this tag to follow discussion of remediation and the impact on Windows environments using NFS.