The National Security Agency (NSA) has issued a press release detailing a severe vulnerability in Windows 10 and encouraging all users to update immediately.

According the NSA’s press release, the agency discovered the vulnerability in the Windows 10 cryptography functionality. “The certificate validation vulnerability allows an attacker to undermine how Windows verifies cryptographic trust and can enable remote code execution. The vulnerability affects Windows 10 and Windows Server 2016/2019 as well as applications that rely on Windows for trust functionality.”

It is relatively unusual for the NSA to issue a press release about a vulnerability, but the severity of this particular one warranted it.

“The vulnerability places Windows endpoints at risk to a broad range of exploitation vectors. NSA assesses the vulnerability to be severe and that sophisticated cyber actors will understand the underlying flaw very quickly and, if exploited, would render the previously mentioned platforms as fundamentally vulnerable. The consequences of not patching the vulnerability are severe and widespread. Remote exploitation tools will likely be made quickly and widely available. Rapid adoption of the patch is the only known mitigation at this time and should be the primary focus for all network owners.”

The agency recommends all users immediately apply all January 2020 Patch Tuesday patches to mitigate the danger.