Vulnerability · Published Dec 15, 2021 · Assigned by microsoft
CVE-2021-43877ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
High 8.8
In plain English
A high-severity security flaw in ASP.NET Core 3.1 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 45.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) | 16.0.0 – before 16.7.23 |
| Microsoft | Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) | 15.0.0 – before 16.9.15 |
| Microsoft | Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) | 16.11.0 – before 16.11.8 |
| Microsoft | Microsoft Visual Studio 2022 version 17.0 | 17.0.0 – before 17.0.3 |
| Microsoft | ASP.NET Core 3.1 | 3.0 – before 3.1.22 |
| Microsoft | ASP.NET Core 5.0 | 5.0 – before 5.0.13 |
| Microsoft | ASP.NET Core 6.0 | 6.0 – before 6.0.101 |
| Microsoft | Microsoft Visual Studio 2022 version 17.1 | 17.0.0 – before 17.1.4 |