Vulnerability in Microsoft Asp.net Core 3.1
CVE-2021-43877
ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
EPSS: 0.007 (72.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C.
Affected products
- Microsoft Asp.net Core 3.1 — versions 3.0
- Microsoft Asp.net Core 5.0 — versions 5.0
- Microsoft Asp.net Core 6.0 — versions 6.0
- Microsoft Visual Studio 2019 Version 16.11 (Includes 16.0 - 16.10) — versions 16.11.0
- Microsoft Visual Studio 2019 Version 16.7 (Includes 16.0 – 16.6) — versions 16.0.0
- Microsoft Visual Studio 2019 Version 16.9 (Includes 16.0 - 16.8) — versions 15.0.0
- Microsoft Visual Studio 2022 Version 17.0 — versions 17.0.0
- Microsoft Visual Studio 2022 Version 17.1 — versions 17.0.0
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43877 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-43877?
- CVE-2021-43877 is a high-severity vulnerability in Microsoft Asp.net Core 3.1. CVSS score: 8.8/10. Published 2021-12-15.
- How severe is CVE-2021-43877?
- High severity. CVSS v3 base score is 8.8 out of 10.