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OpenAdvisories
High MSRC-CVE-2021-26423 1 CVE

.NET Core and Visual Studio Denial of Service Vulnerability

Published Aug 10, 2021 · Updated Aug 19, 2021 · Revision 4

Vendor: Microsoft

Summary

Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
15.9.38 — https://docs.microsoft.com/en-us/visualstudio/releasenotes/vs2017-relnotes
16.4.25 — https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.4
16.7.18 — https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.7
16.9.10 — https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.9
16.10.5 — https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.10
8.10.7 — https://docs.microsoft.com/visualstudio/releasenotes/vs2019-mac-relnotes
2.1.30 — https://github.com/dotnet/announcements/issues/194
7.1.4 — https://github.com/PowerShell/Announcements/issues/25

Vulnerabilities 1

Revision history

  1. #4

    To comprehensively address this vulnerability, Microsoft has released .NET Core 2.1 Build Number 2.1.30. Customers who have downloaded Build 2.1.29 should download and install Build 2.1.30 to be fully protected from this vulnerability.

  2. #3

    Revised the Security Updates table to include PowerShell 7.0 and PowerShell 7.1 because these versions of PowerShell 7 incorporate the versions of .NET Core that are affected by this vulnerability. See [https://github.com/PowerShell/Announcements/issues/25](https://github.com/PowerShell/Announcements/issues/25) for more information.

  3. #1

    Information published.

  4. #2

    In the Security Updates table, added links to the Release Notes. This is an informational change only.

References