The official HUD guidelines for FHA-insured loans (the primary way to buy HUD homes) are based on your credit score:

Buying a (a foreclosed property previously insured by the Federal Housing Administration (FHA)) with a low credit score is possible, though your specific score determines your down payment and loan options . Because HUD homes are sold as-is, they are often priced lower, making them accessible even for those with financial challenges. 1. Know Your Score and Requirements