Security News > 2021 > June > Microsoft June 2021 Patch Tuesday fixes 6 exploited zero-days, 50 flaws

Today is Microsoft's June 2021 Patch Tuesday, and with it comes fixes for seven zero-day vulnerabilities and a total of 50 flaws, so Windows admins will be scrambling to get devices secured.

Microsoft has fixed 50 vulnerabilities with today's update, with five classified as Critical and forty-five as Important.

As part of today's Patch Tuesday, Microsoft has fixed seven zero-day vulnerabilities, with six of them known to be exploited in the past.

In a report released today by Kaspersky, researchers explain that the CVE-2021-31955 and CVE-2021-31956 zero-day vulnerabilities were used in attacks by a new threat actor group known as PuzzleMaker.

The threat actors then chained together the CVE-2021-31955 and CVE-2021-31956 vulnerabilities to elevate their privileges on the compromised Windows device.

Below is the full list of resolved vulnerabilities and released advisories in the June 2021 Patch Tuesday updates.

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https://www.bleepingcomputer.com/news/microsoft/microsoft-june-2021-patch-tuesday-fixes-6-exploited-zero-days-50-flaws/