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.

INFO

Published Date :

2026-03-19T00:00:00.000Z

Last Modified :

2026-04-29T14:34:11.558Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25667 vulnerability.

Vendors Products
Microsoft
  • .net
  • Aspnetcore
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-25667.

URL Resource
https://github.com/IsaJafarov/Kestrel-DoS cve-icon cve-icon
https://github.com/IsaJafarov/Q3Fuzz cve-icon cve-icon
https://github.com/dotnet/aspnetcore/commit/96ccc40a0e095424b19506e8268b9b1a3e23d6a7#diff-667d5b3693f93a0f706ab211428998b210862f9b885d917104d2013118312626 cve-icon cve-icon
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CVSS Vulnerability Scoring System

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