CVE-2021-43877
ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
HIGH
8.8
CVSS Score
Published: December 15, 2021 at 02:15 PM UTC
Updated: June 17, 2026 at 04:11 AM UTC
3 products affected across 1 vendorVisual Studio 2022Visual Studio 2019ASP.NET Core
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Severity
HIGH8.8
Exploit prediction
EPSS 0.7%
Description
ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 3.1.22, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.0.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.101, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.11.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.7.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.9.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.1.4, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43877CVSS
8.8HIGHmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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