Vulnerability Intelligence Report
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
CVE-2023-35391
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
No Active Exploit Signals
CVSS Base Score
6.2
MEDIUM
Exploitability:2.6
Impact Score:3.6
EPSS Probability:1.90%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | .NET 6.0 | 6.0.0 < 6.0.21 (affected) |
| Microsoft | .NET 7.0 | 7.0.0 < 7.0.10 (affected) |
| Microsoft | ASP.NET Core 2.1 | 2.0 < 2.1.40 (affected) |
| Microsoft | Microsoft Visual Studio 2022 version 17.2 | 17.2.0 < 17.2.18 (affected) |
| Microsoft | Microsoft Visual Studio 2022 version 17.4 | 17.4.0 < 17.4.10 (affected) |
| Microsoft | Microsoft Visual Studio 2022 version 17.6 | 17.6.0 < 17.6.6 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.904%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2023-06-14T23:09:47 |
| Published | 2023-08-08T18:52:30 |
| Patch Date | 2023-08-08 |
| Last Updated | 2026-08-10T15:11:59 |
Community Chatter & Buzz