01 Record
CVE-2022-21911
.NET Framework Denial of Service Vulnerability
HighPUBLISHEDCNA: microsoft
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
02 Description
.NET Framework Denial of Service Vulnerability
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.05% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 87.4% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-01-11 20:23Z4 YR AGO
- Last updated
- 2025-01-02 18:22Z1 YR AGO
- Reserved
- 2021-12-14
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- d9d907f1e851785066cb94db294c93943f50aaac0c8171d4276b2093a0752cdd
05 Affected products
VendorProductVersionsPlatforms
MicrosoftMicrosoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.24.0.0.0 to < 4.7.3905.0Windows Server 2012 (Server Core installation), Windows 8.1 for x64-based systems, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2012 R2 (Server Core installation), Windows 7 for x64-based Systems Service Pack 1, Windows RT 8.1, Windows 8.1 for 32-bit systems, Windows Server 2012 R2, Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows 7 for 32-bit Systems Service Pack 1, Windows Server 2012
MicrosoftMicrosoft .NET Framework 3.5 AND 4.84.8.0 to < 4.8.4465.0Windows Server, version 20H2 (Server Core Installation), Windows 10 Version 1909 for x64-based Systems, Windows 10 Version 20H2 for ARM64-based Systems, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 1909 for ARM64-based Systems, Windows Server 2019 (Server Core installation), Windows 10 Version 20H2 for 32-bit Systems, Windows Server 2019, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1909 for 32-bit Systems, Windows 10 Version 21H1 for x64-based Systems, Windows 10 Version 21H1 for ARM64-based Systems, Windows 10 Version 21H1 for 32-bit Systems, Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 version 21H2 for x64-based Systems
MicrosoftMicrosoft .NET Framework 4.84.8.0 to < 4.8.4465.0Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2012 (Server Core installation), Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 8.1 for 32-bit systems, Windows Server 2016 (Server Core installation), Windows RT 8.1, Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2, Windows 7 for 32-bit Systems Service Pack 1, Windows 8.1 for x64-based systems, Windows Server 2012, Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2016
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.24.7.0 to < 4.7.3905.0Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 1809 for ARM64-based Systems, Windows Server 2019, Windows 10 for x64-based Systems, Windows Server 2019 (Server Core installation), Windows 10 for 32-bit Systems
MicrosoftMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.23.0.0.0 to < 10.0.14393.4886Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation)
MicrosoftMicrosoft .NET Framework 2.0 Service Pack 22.0.0 to < 2.0.50727.8955Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2
MicrosoftMicrosoft .NET Framework 4.64.0.0.0 to < 4.7.3905.0Windows Server 2008 for x64-based Systems Service Pack 2, Windows Server 2008 for 32-bit Systems Service Pack 2
MicrosoftMicrosoft .NET Framework 3.53.5.0 to < 2.0.50727.8955Windows 8.1 for 32-bit systems, Windows 8.1 for x64-based systems, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
MicrosoftMicrosoft .NET Framework 3.5.13.5.0 to < 2.0.50727.8955Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1
MicrosoftMicrosoft .NET Framework 4.5.24.0.0.0 to < 4.0.30319.36720Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows 8.1 for 32-bit systems, Windows 8.1 for x64-based systems, Windows RT 8.1, Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2, Windows Server 2012, Windows Server 2012 R2 (Server Core installation), Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows Server 2012 R2, Windows Server 2012 (Server Core installation)
06 References
- msrc.microsoft.com.NET Framework Denial of Service Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21911
- portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21911