Vulnerability Intelligence Report
.NET Security Feature Bypass Vulnerability
CVE-2026-47304
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
No Active Exploit Signals
CVSS Base Score
8.1
HIGH
Exploitability:2.3
Impact Score:5.9
EPSS Probability:0.29%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | .NET 10.0 runtime | 10.0.0 < 10.0.10 (affected) |
| Microsoft | .NET 8.0 runtime | 8.0.0 < 8.0.29 (affected) |
| Microsoft | .NET 9.0 runtime | 9.0.0 < 9.0.18 (affected) |
| Microsoft | Microsoft .NET Framework 3.5 | 3.5.0 < 2.0.50727.8983 & 3.0.30729.8978 (affected) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 < 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0 (affected) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0 (affected) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1 < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0 (affected) |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0 < 4.7.4143.0 (affected) |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 < 4.8.4803.0 (affected) |
| Microsoft | Microsoft .NET Framework 4.8.1 | 4.8.0.0 < 4.8.9340.0 (affected) |
| Microsoft | Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | - (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) | - (affected) |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0 < 17.12.22 (affected) |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 < 17.14.36 (affected) |
| Microsoft | Microsoft Visual Studio 2026 version 18.5 | - (affected) |
| Microsoft | Microsoft Visual Studio 2026 version 18.7 | 18.0 < 18.7.4 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.286%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-05-18T23:53:33 |
| Published | 2026-07-14T18:45:33 |
| Patch Date | 2026-07-14 |
| Last Updated | 2026-11-01T17:33:24 |
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