.NET Framework Denial of Service Vulnerability
Released: Apr 12, 2022
Last updated: Jun 24, 2024
- Assigning CNA
- Microsoft
- CVE.org link
- CVE-2022-26832
- Impact
- Denial of Service
- Max Severity
- Important
- CVSS Source
- Microsoft
- Vector String
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
- Metrics
- CVSS:3.1 7.5 / 6.5Base score metrics: 7.5 / Temporal score metrics: 6.5
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Exploit Code Maturity
Unproven
Remediation Level
Official Fix
Report Confidence
Confirmed
Please see Common Vulnerability Scoring System for more information on the definition of these metrics.
Exploitability
The following table provides an exploitability assessment for this vulnerability at the time of original publication.
- Publicly disclosed
- No
- Exploited
- No
- Exploitability assessment
- Exploitation Less Likely
Acknowledgements
- Orange Tsai (@orange_8361) with DEVCORE
Security Updates
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.
- 10.0.14393.5066
- 10.0.14393.5066
- 10.0.14393.5066
- 10.0.14393.5066
- 4.7.3930.02
- 4.7.3930.02
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.8.4494.03
- 4.0.52732.36732
- 4.0.52734.36734
- 4.0.52732.36732
- 4.0.52734.36734
- 4.0.52730.36730
- 4.0.52730.3673
- Monthly Rollup
- 4.0.52730.36730
- 4.0.52730.36730
- 4.0.52730.3673
- 4.0.52732.36732
- 4.0.52734.36734
- 4.0.52732.36732
- 4.0.52734.36734
- 6.1.50727.8962
- 2.0.50727.8962
- 6.1.50727.8962
- 2.0.50727.8962
- 6.1.50727.8962
- 2.0.50727.8962
- 6.1.50727.8962
- 2.0.50727.8962
- -
- 2.0.50727.8962
- 4.7.03930.02
- 4.0.3930.01
- 52732.36732
- 4.0.52734.36734
- 4.8.04494.03
- 4.8.4494.01
- 4.8.4494.03
- 4.7.03930.02
- 4.7.3930.01
- 4.8.04494.03
- 4.8.4494.01
- 4.7.03930.02
- 4.0.3930.01
- 4.7.03930.02
- 4.0.3930.01
- 4.703930.02
- 4.7.3930.01
- 4.8.04494.03
- 4.8.4494.01
- 4.8.04494.03
- 4.8.4494.01
- Monthly Rollup
- 4.7.03930.02
Disclaimer
Revisions
Updated the build numbers. This is an informational update only.
To comprehensively address this vulnerability, Microsoft has released Monthly Rollup KB5016268 for .NET Framework 3.5 installed on Windows 8.1 and Windows Server 2012 R2. Microsoft strongly recommends that customers install the update to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
In the Security Updates table, added .NET Framework 4.6.2/4.7/4.7.1/4.7.2 installed on Windows 10 version 1607, Windows Server 2016, and Windows Server 2016 (Server Core installation) as these versions of Window 10 and Windows Server with .NET Framework 4.6.2/4.7/4.7.1/4.7.2 installed are affected by this vulnerability. Customers running these versions of .NET Framework should install the April 2022 security updates to be protected from this vulnerability.
In the Security Updates table, added .NET Framework 4.8 installed on Windows Server 2016 and Windows Server 2016 (Server Core installation), .NET Framework 3.5 and 4.7.2 intalled on Windows Server 2019 and Windows Server 2019 (Server Core installation), and .NET Framework 3.5 and 4.8 installed on Windows Server 2019 and Windows Server 2019 (Server Core installation) as these versions of Windows Server with these versions of .NET Framework installed are affected by this vulnerability. Customers running these versions of .NET Framework should install the April 2022 security updates to be protected from this vulnerability.
Information published.