If you can see the text: jscript.dll says hello on this page: https://binaryfigments.github.io/CVE-2020-0674/

Then you can be vulnerable the this attack. You will see the following screen.

Mitigation steps from Microsoft's advisory

For 32-bit systems, enter the following command at an administrative command prompt:

takeown /f %windir%\system32\jscript.dll
cacls %windir%\system32\jscript.dll /E /P everyone:N

For 64-bit systems, enter the following command at an administrative command prompt:

takeown /f %windir%\syswow64\jscript.dll
cacls %windir%\syswow64\jscript.dll /E /P everyone:N
takeown /f %windir%\system32\jscript.dll
cacls %windir%\system32\jscript.dll /E /P everyone:N

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200001
• https://www.kryptoslogic.com/blog/2020/01/rdp-to-rce-when-fragmentation-goes-wrong/
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0674
• https://techcrunch.com/2020/01/18/internet-explorer-security-flaw/
• https://kb.cert.org/vuls/id/338824/
• https://www.us-cert.gov/ncas/current-activity/2020/01/17/microsoft-releases-security-advisory-internet-explorer
• https://securityaffairs.co/wordpress/96560/hacking/cve-2020-0674-ie-0day.html
• https://www.ncsc.nl/actueel/advisory?id=NCSC-2020-0056