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High severity7.5NVD Advisory· Published Mar 19, 2026· Updated Apr 22, 2026

CVE-2026-25667

CVE-2026-25667

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.

Affected products

1
  • Microsoft/Net
    cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
    Range: >=8.0.0,<8.0.22

Patches

1
96ccc40a0e09
https://github.com/dotnet/aspnetcorevia nvd-ref
commit

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

1

News mentions

0

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