Basement Foundation Crack in Potential Deal

[Michael Vu]

I just got back from looking at a potential duplex property. Overall, the property looked solid with minimal repairs in the living spaces. However, in the basement, there is a few horizontal cracks in the wall. The basement has poured cement foundation. It looks like the wall was once patched with cement and now that layer has cracked. I also found some cracking in the exterior and on the porch. Here are some photos I took:

Would appreciate any input from others with more knowledge about how serious this type of crack is. There was no water leakage in the basement and no humidity at all. Thanks for any help, really appreciate it!