The U.S. government repository of standards based vulnerability management website National Vulnerability Database (NVD) was hacked by some unknown attacker last week. The website of NVD is down since Friday due to a malware infection on two web servers, discovered on Wednesday. Malware was discovered on two NIST Web servers and was then traced to a software vulnerability. There is no evidence that NVD or any other NIST public pages contained or were used to deliver malware to users, he added.
Source: https://thehackernews.com/2013/03/nist-national-vulnerability-database.html