CVE-2021-1723
At a glance
- Severity
- HIGH 7.5
- EPSS
- EPSS 5.30 % · percentile 93 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Modified
Description
ASP.NET Core and Visual Studio Denial of Service Vulnerability
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · secure@microsoft.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Secondary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-242j-2gm6-5rwx — ASP.NET Core and Visual Studio Denial of Service Vulnerability
European references
- ENISA EUVD · EUVD-2022-1900
- GCVE · GCVE-0-2021-1723
CERT-FR advisories
- CERTFR-2021-AVI-029 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2021-AVI-028 — Multiples vulnérabilités dans Microsoft .Net · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*≥ 3.1 ≤ 3.1.10cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*≥ 5.0 ≤ 5.0.1cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*≥ 16.0 ≤ 16.8cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Microsoft · ASP.NET Core 3.1 | affected 3.0 < publication |
| Microsoft · ASP.NET Core 5.0 | affected 5.0 < publication |
| Microsoft · Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | affected 16.0 < publication |
| Microsoft · Microsoft Visual Studio 2019 version 16.8 | affected 16.0 < publication |
| Microsoft · Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) | affected 16.0.0 < publication |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1723
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1723
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |