The answer to this question is false. This is because the NVD doesn't perform such tests on their own. Instead they they rely on third-party vendors, software researchers, etc to get such reports and do the assignment of CVSS scores for softwares
The National Vulnerability Database (NVD) is the United State governments leading resource for software vulnerability
The most likely reason for this error is that the share is currently not available either on just the user’s computer or server-wide. The next step would be to check for the scope of the problem.