Microsoft has published its January security advisories warning billions of users of 49 new vulnerabilities in its various products. One of the updates fixes a serious flaw in the core cryptographic component of widely used Windows 10, Server 2016 and 2019 editions that was discovered and reported to the company by the National Security Agency of the United States. The issue resides in the way Crypt32.dll module validates Elliptic Curve Cryptography (ECC) certificates that is currently the industry standard for public-key cryptography and used in the majority of SSL/TLS certificates.
Source: https://thehackernews.com/2020/01/warning-quickly-patch-new-critical.html