Vulnerability in Microsoft Asp.net Core
CVE-2021-43877
ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (53.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Microsoft Asp.net Core — versions 3.1, 5.0, 6.0
- 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
- Microsoft Visual Studio 2019 — versions 16.7, 16.9, 16.11
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43877 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-43877?
- CVE-2021-43877 is a high-severity vulnerability in Microsoft Asp.net Core. 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.