CVE-2026-25667

Published March 19th, 2026

View on NVD ↗

CVSS v3

7.5

HIGH

CVSS v2

N/A

Affected

PROJECTS

Description

ASP.NET Core Kestrel in Microsoft .NET 8.0 before 8.0.22 and .NET 9.0 before 9.0.11 allows a remote attacker to cause excessive CPU consumption by sending a crafted QUIC packet, because of an incorrect exit condition for HTTP/3 Encoder/Decoder stream processing.

IsaJafarov/Kestrel-DoS

GitHub

dotnet/aspnetcore

ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

GitHub

38K