Security News > 2020 > December > Microsoft December 2020 Patch Tuesday fixes 58 vulnerabilities

With the December 2020 Patch Tuesday security updates release, Microsoft has released fixes for 58 vulnerabilities and one advisory for Microsoft products.
Of the 58 vulnerabilities fixed today, nine are classified as Critical, 48 as Important, and two as Moderate.
There are no zero-day or previously disclosed vulnerabilities fixed in the December 2020 updates.
Included in today's Patch Tuesday updates is an advisory for a DNS cache poisoning vulnerability discovered by security researchers from Tsinghua University and the University of California.
Below is the full list of resolved vulnerabilities and released advisories in the December 2020 Patch Tuesday updates.
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