The Spaniard will face the Greek Maria Sakkari (N.6) on Friday, who dismissed the Kazakh Elena Rybakina (20th) 7-5, 6-4.
The other semi-final will oppose the Polish Iga Swiatek (4th) and the Romanian Simona Halep (26th).
Badosa, in search of a second title this season after winning the Sydney tournament in January, was very solid against an opponent who did not succeed since she remained on three losses in as many matches.
"Against her, I was making the same mistakes, this time I wanted it to stop. I served very well and was more aggressive," she commented hotly.
The 24-year-old Spaniard, who has felt at home in Indian Wells since her victory in October, during the previous edition rescheduled due to the Covid-19 pandemic, has indeed given no hope to her rival.
She broke to lead 3-1 in the first set, then kept this advantage without shaking, only having to clear a break point at 5-3.
The second set was more expeditious, after Kudermetova had to go to the locker room for a few moments, Badosa seizing her rival's serve twice, to conclude in 1h19.
© 2022 AFP