Vulnerability Intelligence Report
.NET Framework Denial of Service Vulnerability
CVE-2026-32226
Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
No Active Exploit Signals
CVSS Base Score
5.9
MEDIUM
Exploitability:2.3
Impact Score:3.6
EPSS Probability:0.66%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-362 ↗CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft .NET Framework 3.5 | 3.5.0 < 2.0.50727.8982 & 3.0.30729.8976 (affected) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 < 2.0.50727.9068 & 3.0.30729.9065 & 4.7.4141.0 (affected) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 < 2.0.50727.9068 & 3.0.30729.9065 & 4.8.4801.0 (affected) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1 < 2.0.50727.9181 & 3.0.30729.9165 & 4.8.9332.0 (affected) |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0 < 4.8.4801.0 (affected) |
| Microsoft | Microsoft .NET Framework 4.7.2 | 10.0.0.0 < 2.0.50727.9068 & 3.0.30729.9065 & 4.7.4141.0 (affected) |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 < 2.0.50727.9181 & 3.0.30729.9165 & 4.8.4801.0 (affected) |
| Microsoft | Microsoft .NET Framework 4.8.1 | 4.8.0.0 < 2.0.50727.9181 & 3.0.30729.9165 & 4.8.9332.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.655%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-03-11T01:49:58 |
| Published | 2026-04-14T16:57:44 |
| Patch Date | 2026-04-14 |
| Last Updated | 2026-10-14T23:02:26 |
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