The NFS server in Microsoft Windows Server 2008 R2 and R2 SP1 and Server 2012 allows remote attackers to cause a denial of service (NULL pointer dereference and reboot) via an attempted renaming of a file or folder located on a read-only share, aka "NULL Dereference Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16388
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-014