In 2020, a record-high number of 1,268 Microsoft vulnerabilities were discovered, a 48% increase YoY. Elevation of Privilege was the #1 vulnerability category, comprising 44% of the total, nearly three times more than in the previous year. Removing admin rights from endpoints would mitigate 56% of all Critical Microsoft vulnerabilities in 2020. The number of reported vulnerabilities has risen an astonishing 181% in the last five years (2016-2020)”]
Source: https://www.bankinfosecurity.com/whitepapers/annual-microsoft-vulnerabilities-report-2021-w-7795