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CVE-2026-25667

HIGH CVSS: 7.5 Published: 2026-03-19 Modified: 2026-06-17

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 Platforms

Microsoft .Net

Weakness Type

CWE-400

References