Vulnerability Intelligence Report
ASP.NET Core and Visual Studio Information Disclosure Vulnerability
CVE-2021-34532
ASP.NET Core and Visual Studio Information Disclosure Vulnerability
No Active Exploit Signals
CVSS Base Score
5.5
MEDIUM
Exploitability:1.9
Impact Score:3.6
EPSS Probability:1.12%
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
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SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | ASP.NET Core 2.1 | 2.0 < 2.1.29 (affected) |
| Microsoft | ASP.NET Core 3.1 | 3.0 < 3.1.18 (affected) |
| Microsoft | ASP.NET Core 5.0 | 5.0 < 5.0.9 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9) | 16.10.0 < 16.10.5 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | 16.0 < 16.4.25 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) | 16.0.0 < 16.7.18 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) | 15.0.0 < 16.9.10 (affected) |
| Microsoft | Visual Studio 2019 for Mac version 8.10 | 8.1.0 < 8.10.7 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.121%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2021-06-09T00:00:00 |
| Published | 2021-08-12T18:12:05 |
| Patch Date | 2021-08-10 |
| Last Updated | 2026-08-10T15:10:12 |
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