Grabit versions 1.7.2 Beta 3 and below suffer from a NZB file parsing stack overflow vulnerability.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/77246/grabit-overflow.txt
Source: https://packetstormsecurity.com/files/77246/Grabit-1.7.2-Beta-3-Stack-Overflow.html