Microsoft’s Patch Tuesday Security Updates for November

THREAT LEVEL: Red.

For a detailed advisory, download the pdf file here.

For the month of November, Microsoft has reported a total of 55 vulnerabilities, 6(CVE-2021-38666, CVE-2021-26443, CVE-2021-42279, CVE-2021-42298, CVE-2021-42316, CVE-2021-3711) of which have been rated critical. Four (CVE-2021-43208, CVE-2021-43209) of these vulnerabilities have been publicly known and two (CVE-2021-42292, CVE-2021-42321) of them have been exploited in the wild. Patches of all these vulnerabilities have been published by Microsoft. This Advisory only focuses on the important 12 vulnerabilities.

Vulnerability Details

Patch Link

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42292&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-43208&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-43209&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-38631&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-41371&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-38666&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26443&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42279&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42298&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42316&gt;

<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-3711&gt;

References

<https://threatpost.com/microsoft-nov-patch-tuesday-fixes-six-zero-days-55-bugs/176143/&gt;

<https://www.zerodayinitiative.com/blog/2021/11/9/the-november-2021-security-update-review&gt;