CVE-2021-31957
dotnet: ASP.NET Core Client Disconnect Denial of Service
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 9, 2021
Updated · October 8, 2026
Description
A flaw was found in dotnet. The way client disconnects are handled can allow a remote, unauthenticated attacker to exploit this vulnerability to cause a denial of service against an ASP.NET Core application. The highest threat from this vulnerability is to system availability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime