A non-privileged user or program can put code and a config file in a known non-privileged path (under C:/usr/local/) that will make curl <= 7.65.1 automatically run the code (as an openssl "engine") on invocation. If that curl is invoked by…

{
                    "product": "curl",
                    "vendor": "n/a",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "<= 7.65.1"
                        }
                    ]
                }