Had 2 cracks like this found in my house when I was putting an offer in to buy it. The original buyer backed out, which opened the door for us to buy the house. I had a licensed structural engineer look at it. He said those types of cracks pose no structural concerns, but they should be filled with a sika grade epoxy and the drainage on the outside of the house should be fixed to move water away from the foundation. We had the seller do this.

We just sold the house this month and I was worried the cracks would cause buyers to back out, but had no issues.