CVE-2020-1597: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 6.6% chance of exploitation in the next 30 days.

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. The update addresses the vulnerability by correcting how the ASP.NET Core web application handles web requests.

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only
• Microsoft ASP.NET Core: version 2.1 only; version 3.1 only
• Microsoft Visual Studio 2017: from 15.0, up to and including 15.8
• Microsoft Visual Studio 2019: from 16.0, up to and including 16.3; from 16.5, up to and including 16.6

Published 2020-08-17. Last modified 2026-06-17.