CVE-2026-32226: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Microsoft .NET Framework 3.5
Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-362) involves a race condition in Microsoft .NET Framework 3.5 where concurrent execution using a shared resource is improperly synchronized. This flaw can be exploited by an unauthorized attacker remotely to cause a denial of service condition. The vulnerability does not impact confidentiality or integrity but affects availability. Microsoft has published an official fix to remediate this issue.
Potential Impact
An attacker can remotely cause a denial of service by exploiting the race condition, impacting the availability of affected systems running .NET Framework 3.5. There is no impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32226 to remediate this vulnerability.
CVE-2026-32226: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Microsoft .NET Framework 3.5
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
CVSS v3.1
Score 5.9medium
Affected software
Microsoft
Microsoft .NET Framework 3.5
Microsoft
Microsoft .NET Framework 3.5 AND 4.7.2
Microsoft
Microsoft .NET Framework 3.5 AND 4.8
Microsoft
Microsoft .NET Framework 3.5 AND 4.8.1
Microsoft
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Microsoft
Microsoft .NET Framework 4.7.2
Microsoft
Microsoft .NET Framework 4.8
Microsoft
Microsoft .NET Framework 4.8.1
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-362) involves a race condition in Microsoft .NET Framework 3.5 where concurrent execution using a shared resource is improperly synchronized. This flaw can be exploited by an unauthorized attacker remotely to cause a denial of service condition. The vulnerability does not impact confidentiality or integrity but affects availability. Microsoft has published an official fix to remediate this issue.
Potential Impact
An attacker can remotely cause a denial of service by exploiting the race condition, impacting the availability of affected systems running .NET Framework 3.5. There is no impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32226 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-11T01:49:58.662Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32226","vendor":"Microsoft"}]
Threat ID: 69de7a3882d89c981fd6cef6
Added to database: 04/14/2026, 17:32:40 UTC
Last enriched: 08/15/2026, 14:09:34 UTC
Last updated: 09/12/2026, 10:01:30 UTC
Views: 185
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