BIT-dotnet-sdk-2026-25667

vendorUSosv

view advisory published 2026-04-16Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-25667US	—	3.12% (88th)	—	2026-03-19
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, be…

references

External citations — patches, advisories, analysis.

https://github.com/IsaJafarov/Kestrel-DoSADVISORY
https://github.com/IsaJafarov/Q3FuzzWEB
https://github.com/dotnet/aspnetcore/commit/96ccc40a0e095424b19506e8268b9b1a3e23d6a7#diff-667d5b3693f93a0f706ab211428998b210862f9b885d917104d2013118312626FIX
https://nvd.nist.gov/vuln/detail/CVE-2026-25667WEB

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