.NET Core & Visual Studio
CVE-2021-34485 — .NET Core and Visual Studio Information Disclosure Vulnerability
Executive Summary
None
Overview
5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.4
EPSS Score
0.01237
probability of exploitation in the next 30 days
0.65179 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
10 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET 5.0 | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| .NET Core 2.1 | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| .NET Core 3.1 | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9) | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| PowerShell 7.0 | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| PowerShell 7.1 | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
Release Notes |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Microsoft has not published researcher acknowledgments for this CVE, or they are not yet reflected in our data source. Check the MSRC advisory directly for the most current credit information.
References
On This Page