Well it will be able to cool it, but it won't be able to cool it EFFECTIVELY. It won't hit its Turbo speeds, and will likely throttle if you use it under anything moderately intensive, but it won't kill it, but you really won't be getting any real benefit from the massive number of cores. You should be using something stronger which AMD recommends, or you could build your own liquid cooling loop.
https://www.amd.com/en/processors/3950x-thermal-solutions