CVE-2020-0603: Microsoft ASP.NET Core

High severity, CVSS 8.8. EPSS: 21% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in ASP.NET Core software when the software fails to handle objects in memory.An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user, aka 'ASP.NET Core Remote Code Execution Vulnerability'.

Affected products

• Microsoft ASP.NET Core: version 2.1 only; version 3.0 only; version 3.1 only
• Red Hat Enterprise Linux: version 8.0 only
• Red Hat Enterprise Linux Eus: version 8.1 only

Published 2020-01-14. Last modified 2026-06-17.