A spoofing vulnerability exists when Windows incorrectly validates file signatures, aka 'Windows Spoofing Vulnerability'.
https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html
https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/
https://medium.com/@TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464
Source: MITRE
Published: 2020-08-17
Updated: 2020-08-21
Type: CWE-347
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM