Security News > 2022 > May > Microsoft May 2022 Patch Tuesday fixes 3 zero-days, 75 flaws
Today is Microsoft's May 2022 Patch Tuesday, and with it comes fixes for three zero-day vulnerabilities, with one actively exploited, and a total of 75 flaws.
Of the 75 vulnerabilities fixed in today's update, eight are classified as 'Critical' as they allow remote code execution or elevation of privileges.
This month's Patch Tuesday includes fixes for three zero-day vulnerabilities, with one actively exploited and the others publicly disclosed.
Microsoft classifies a vulnerability as a zero-day if it is publicly disclosed or actively exploited with no official fix available.
The two publicly exposed zero-days are a denial of service vulnerability in Hyper-V and a new remote code execution vulnerability in Azure Synapse and Azure Data Factory.
Below is the complete list of resolved vulnerabilities and released advisories in the May 2022 Patch Tuesday updates.
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