CVE-2023-21722: .NET Framework Denial of Service Vulnerability

Published Feb 14, 2023
·
Updated

.NET Framework Denial of Service Vulnerability

Affected Software

145 affected componentsFixes available
Microsoft .NET Framework=3.5, =4.8.1
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows Server 2016
Microsoft Windows Server 2019
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 20h2
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 11 21h2
Microsoft Windows 11 21h2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server 2022
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8.1
Any of the following
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 11 21h2
Microsoft Windows 11 21h2
Microsoft Windows 11 22h2
Microsoft Windows 11 22h2
Microsoft Windows Server 2022
All of the following
Microsoft .NET Framework=3.5
Microsoft Windows Server 2012
All of the following
Microsoft .NET Framework=3.5.1
Microsoft Windows Server 2008=r2-sp1
All of the following
Microsoft .NET Framework=3.0-sp2
Microsoft Windows Server 2008=sp2
All of the following
Microsoft .NET Framework=2.0-sp2
Microsoft Windows Server 2008=sp2
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.6.2
Any of the following
Microsoft Windows 10 1507
Microsoft Windows 10 1511
Microsoft Windows 10 1607
Microsoft Windows 10 1703
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1909
Microsoft Windows 10 2004
Microsoft Windows 10 20h2
Microsoft Windows 10 21h1
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
All of the following
Microsoft .NET Framework=4.6.2
Microsoft Windows Server 2008=sp2
All of the following
Any of the following
Microsoft .NET Framework=4.6.2
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
All of the following
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft .NET Framework=4.8
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 20h2
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 11 21h2
Microsoft Windows 11 21h2
Microsoft Windows Server 2022
Microsoft .NET Framework=4.8.1
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 11 22h2
Microsoft Windows 11 22h2
Microsoft Windows Server 2012
Microsoft .NET Framework=3.5.1
Microsoft Windows Server 2008=r2-sp1
Microsoft .NET Framework=3.0-sp2
Microsoft Windows Server 2008=sp2
Microsoft .NET Framework=2.0-sp2
Microsoft .NET Framework=4.6.2
Microsoft Windows 10 1507
Microsoft Windows 10 1511
Microsoft Windows 10 1703
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1909
Microsoft Windows 10 2004
Microsoft Windows 10 21h1
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft Windows Server 2012=r2
Microsoft .NET Framework=3.5, =4.8
10.0.04614.06
Microsoft .NET Framework=3.5, =4.7.2
10.0.14393.5717
Microsoft .NET Framework=3.5, =4.8
10.0.04614.05
Microsoft .NET Framework=3.5, =4.8.1
10.0.09139.02
Microsoft .NET Framework=3.5.1
3.5.50727.89662.0.50727.8966
Microsoft .NET Framework=2.0
2.0.50727.89662.0.04038.05
Microsoft .NET Framework=3.5
3.5.50727.8966
Microsoft .NET Framework=4.6.2
4.7.04038.064.7.4038.05
Microsoft .NET Framework=3.5
3.5.50727.89662.0.50727.8966
Microsoft .NET Framework=3.0
2.0.50727.89662.0.04038.05
Microsoft .NET Framework=3.5, =4.8.1
10.0.09139.02
Microsoft .NET Framework=3.5, =4.8.1
10.0.09139.02
Microsoft .NET Framework and 4.6.2=3.5
10.0.10240.19747
Microsoft .NET Framework=3.5, =4.8.1
10.0.09139.02
Microsoft .NET Framework=3.5, =4.8.1
10.0.09139.02
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
4.7.04038.034.7.04038.02
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
4.7.04038.034.7.04038.02
Microsoft .NET Framework=3.5, =4.7.2
10.0.04038.03
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
4.7.04614.084.7.04038.05
Microsoft .NET Framework=3.5, =4.8
10.0.04614.06
Microsoft .NET Framework=3.5, =4.8
10.0.04614.06
Microsoft .NET Framework=3.5, =4.8
10.0.4614.06
Microsoft .NET Framework=3.5, =4.8
10.0.04614.06
Microsoft .NET Framework=4.8
4.8.04614.054.8.04614.03
Microsoft .NET Framework=4.8
4.8.4614.084.8.4614.07
Microsoft .NET Framework=4.8
4.8.04614.054.8.04614.03

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.04614.06Patch KB5022729
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.14393.5717Patch KB5022838
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.04614.05Patch KB5022503
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.09139.02Patch KB5022729
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.5.50727.8966Fixed in 2.0.50727.8966Patch KB5022783
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.0.50727.8966Fixed in 2.0.04038.05Patch KB5022786
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.5.50727.8966Patch KB5022784
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.7.04038.06Fixed in 4.7.4038.05Patch KB5022786
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.5.50727.8966Fixed in 2.0.50727.8966Patch KB5022785
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.09139.02Patch KB5022497
  11. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.09139.02Patch KB5022728
  12. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.10240.19747Patch KB5022858
  13. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.09139.02Patch KB5022730
  14. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.09139.02Patch KB5022727
  15. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.7.04038.03Fixed in 4.7.04038.02Patch KB5022784
  16. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.09139.02Patch KB5022735
  17. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.7.04038.03Fixed in 4.7.04038.02Patch KB5022785
  18. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.04038.03Patch KB5022782
  19. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.7.04614.08Fixed in 4.7.04038.05Patch KB5022783
  20. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.04614.06Patch KB5022728
  21. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.04614.06Patch KB5022727
  22. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.4614.06Patch KB5022730
  23. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.04614.06Patch KB5022782
  24. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.04614.06Patch KB5022735
  25. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.8.04614.05Fixed in 4.8.04614.03Patch KB5022785
  26. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.8.4614.08Fixed in 4.8.4614.07Patch KB5022783
  27. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.8.04614.05Fixed in 4.8.04614.03Patch KB5022784

Event History

Feb 14, 2023
CVE Published
08:00 AM
Data Sourced
08:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:00 AM
Affected Software
Updated
via Microsoft·08:00 AM
Description
CVE Published
via MITRE·07:33 PM
Data Sourced
via MITRE·07:33 PM
DescriptionSeverity
Data Sourced
via NVD·08:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is CVE-2023-21722?

CVE-2023-21722 is a Denial of Service vulnerability in .NET Framework.

2

How severe is CVE-2023-21722?

CVE-2023-21722 has a severity rating of high (5).

3

Which versions of .NET Framework are affected by CVE-2023-21722?

CVE-2023-21722 affects .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, and 4.8.1.

4

How do I fix CVE-2023-21722?

To fix CVE-2023-21722, you can apply the relevant security patches provided by Microsoft.

5

Where can I find more information about CVE-2023-21722?

You can find more information about CVE-2023-21722 on the Microsoft Security Response Center website.

Company

Resources

Contact

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