.NET Core
CVE-2021-26701 — .NET Core Remote Code Execution Vulnerability
Executive Summary
None
Overview
8.1
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 7.1
EPSS Score
0.30315
probability of exploitation in the next 30 days
0.97989 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
11 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET 5.0 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| .NET Core 2.1 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| .NET Core 3.1 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2019 version 16.8 (includes 16.0 - 16.7) | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| PowerShell Core 7.0 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| PowerShell Core 7.1 | Release Notes (Security Update) |
Critical | Remote Code Execution | Maybe |
| Visual Studio 2019 for Mac | Release Notes (Security Update) |
Critical | Remote Code Execution | 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