.NET Core & Visual Studio
CVE-2021-41355 — .NET Core and Visual Studio Information Disclosure Vulnerability
Executive Summary
None
Overview
5.7
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Adjacent_network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.0
EPSS Score
0.20342
probability of exploitation in the next 30 days
0.97152 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
4 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET 5.0 | Release Notes (Security Update) |
Important | Information Disclosure | Maybe |
| Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) | 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 7.1 | 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
Srinivas Nunna of Microsoft
References
On This Page