Read the docs
TI-2022-06276 Aliases CVE-2022-21911GHSA-hjxm-5f5m-prmm

.NET Framework Denial of Service Vulnerability

Priority LOW 39Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

.NET Framework Denial of Service Vulnerability

Why it matters now

EPSS 0.03225 88th percentileScored 2026-11-07
Fix Fixed Microsoft: 16 updates

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.24.0.0.0 to before 4.7.3905.04.7.3905.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5 AND 4.84.8.0 to before 4.8.4465.04.8.4465.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 4.84.8.0 to before 4.8.4465.04.8.4465.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.24.7.0 to before 4.7.3905.04.7.3905.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.23.0.0.0 to before 10.0.14393.488610.0.14393.4886Patch availableCNA
MicrosoftMicrosoft .NET Framework 2.0 Service Pack 22.0.0 to before 2.0.50727.89552.0.50727.8955Patch availableCNA
MicrosoftMicrosoft .NET Framework 4.64.0.0.0 to before 4.7.3905.04.7.3905.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.53.5.0 to before 2.0.50727.89552.0.50727.8955Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5.13.5.0 to before 2.0.50727.89552.0.50727.8955Patch availableCNA
MicrosoftMicrosoft .NET Framework 4.5.24.0.0.0 to before 4.0.30319.367204.0.30319.36720Patch availableCNA
  • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 VendorMicrosoft Affected 4.0.0.0 to before 4.7.3905.0 Fixed in 4.7.3905.0 Patch available CNA
  • Microsoft .NET Framework 3.5 AND 4.8 VendorMicrosoft Affected 4.8.0 to before 4.8.4465.0 Fixed in 4.8.4465.0 Patch available CNA
  • Microsoft .NET Framework 4.8 VendorMicrosoft Affected 4.8.0 to before 4.8.4465.0 Fixed in 4.8.4465.0 Patch available CNA
  • Microsoft .NET Framework 3.5 AND 4.7.2 VendorMicrosoft Affected 4.7.0 to before 4.7.3905.0 Fixed in 4.7.3905.0 Patch available CNA
  • Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 VendorMicrosoft Affected 3.0.0.0 to before 10.0.14393.4886 Fixed in 10.0.14393.4886 Patch available CNA
  • Microsoft .NET Framework 2.0 Service Pack 2 VendorMicrosoft Affected 2.0.0 to before 2.0.50727.8955 Fixed in 2.0.50727.8955 Patch available CNA
  • Microsoft .NET Framework 4.6 VendorMicrosoft Affected 4.0.0.0 to before 4.7.3905.0 Fixed in 4.7.3905.0 Patch available CNA
  • Microsoft .NET Framework 3.5 VendorMicrosoft Affected 3.5.0 to before 2.0.50727.8955 Fixed in 2.0.50727.8955 Patch available CNA
  • Microsoft .NET Framework 3.5.1 VendorMicrosoft Affected 3.5.0 to before 2.0.50727.8955 Fixed in 2.0.50727.8955 Patch available CNA
  • Microsoft .NET Framework 4.5.2 VendorMicrosoft Affected 4.0.0.0 to before 4.0.30319.36720 Fixed in 4.0.30319.36720 Patch available CNA

CPE configurations NVD · 46

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*3.5VulnerableMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*4.7.2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*not specified by NVDRunning onMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*4.6.2VulnerableMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*4.7VulnerableMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*4.7.1VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*4.6VulnerableMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:*4.6.1VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:* Versions 3.5 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* Versions 4.7.2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* Versions 4.6.2 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* Versions 4.7 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* Versions 4.7.1 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* Versions 4.6 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* Versions 4.6.1 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Show 36 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*4.8VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x86:*1909Running onMicrosoft
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*r2 sp1Running onMicrosoft
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*r2Running onMicrosoft
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x86:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:rt:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x86:*1809Running onMicrosoft
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:arm64:*1909Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*1809Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*1607Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:*20h2Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*1909Running onMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*1607Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:arm64:*1809Running onMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:*4.5.2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:-:*:*:*:-:*:x86:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:-:*:*:*:-:*:x64:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*3.5.1VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*not specified by NVDRunning onMicrosoft
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*2.0 sp2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:*20h2Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:*21h1Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:*21h1Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:*21h2Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:*21h2Running onMicrosoft
cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server:2022:*:*:*:*:*:*:*2022Running onMicrosoft
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*20h2Running onMicrosoft
cpe:2.3:o:microsoft:windows_server:20h2:*:*:*:*:*:*:*20h2Running onMicrosoft
  • cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* Versions 4.8 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x86:* Versions 1909 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:rt:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x86:* Versions 1809 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:arm64:* Versions 1909 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:* Versions 1809 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:* Versions 1607 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:* Versions 20h2 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:* Versions 1909 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:* Versions 1607 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:arm64:* Versions 1809 Running on ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* Versions 4.5.2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:-:*:*:*:-:*:x86:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:-:*:*:*:-:*:x64:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* Versions 3.5.1 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* Versions 2.0 sp2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:* Versions 20h2 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:* Versions 21h1 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:* Versions 21h1 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:* Versions 21h2 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:* Versions 21h2 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server:2022:*:*:*:*:*:*:* Versions 2022 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:* Versions 20h2 Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server:20h2:*:*:*:*:*:*:* Versions 20h2 Running on ·Microsoft

Remediation

Microsoft 16 updates

  • KB5009722
    Monthly Rollup
    • Microsoft .NET Framework 2.0 Service Pack 2 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6 4.7.3905.0
  • KB5009721
    Monthly Rollup
    • Microsoft .NET Framework 3.5 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 4.7.3905.0
    • Microsoft .NET Framework 4.8 4.8.4465.0
  • KB5009720
    Monthly Rollup
    • Microsoft .NET Framework 3.5 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 4.7.3905.0
    • Microsoft .NET Framework 4.8 4.8.4465.0
Show 13 more Microsoft updates
  • KB5009719
    Monthly Rollup
    • Microsoft .NET Framework 3.5.1 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 4.7.3905.0
    • Microsoft .NET Framework 4.8 4.8.4465.0
  • KB5009718
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.7.2 4.7.3905.0
    • Microsoft .NET Framework 3.5 AND 4.8 4.8.4465.0
  • KB5009714
    Security Only
    • Microsoft .NET Framework 2.0 Service Pack 2 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6 4.7.3905.0
  • KB5009713
    Security Only
    • Microsoft .NET Framework 3.5 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 4.7.3905.0
    • Microsoft .NET Framework 4.8 4.8.4465.0
  • KB5009712
    Security Only
    • Microsoft .NET Framework 3.5 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 4.7.3905.0
    • Microsoft .NET Framework 4.8 4.8.4465.0
  • KB5009711
    Security Only
    • Microsoft .NET Framework 3.5.1 2.0.50727.8955
    • Microsoft .NET Framework 4.5.2 4.0.30319.36720
    • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 4.7.3905.0
    • Microsoft .NET Framework 4.8 4.8.4465.0
  • KB5009585
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.7.2 10.0.10240.19177
    • Windows 10 for 32-bit Systems 10.0.10240.19177
    • Windows 10 for x64-based Systems 10.0.10240.19177
  • KB5009546
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 10.0.14393.4886
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.4886
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.4886
    • Windows Server 2016 10.0.14393.4886
    • Windows Server 2016 (Server Core installation) 10.0.14393.4886
  • KB5008882
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 4.8.4465.0
  • KB5008880
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 4.8.4465.0
  • KB5008879
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 4.8.4465.0
  • KB5008877
    Security Update
    • Microsoft .NET Framework 4.8 4.8.4465.0
  • KB5008876
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 4.8.4465.0

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Denial of Service
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-21911
  2. 2026-10-03 Alias added: GHSA-hjxm-5f5m-prmm

References

Advisory 1

  • TI-2020-00622 XML injection in Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01112 A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and… KEVCVSS 3.1HIGH 7.8
  • TI-2017-06273 Code injection in Microsoft .NET Framework KEVCVSS 3.1HIGH 7.8
  • TI-2015-01495 The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1… KEVCVSS 3.1HIGH 7.8
  • TI-2024-19239 .NET Framework Information Disclosure Vulnerability KEVCVSS 3.1HIGH 7.5
  • TI-2023-18684 ASP.NET Elevation of Privilege Vulnerability CVSS 3.1HIGH 8.8
See all 206 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences