NetSight
high7.5

CVE-2026-25667

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 cr…

Impact

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

VendorProductAffected versions
Microsoft.Net
from 8.0.0 before 8.0.22
from 9.0.0 before 9.0.11

Weakness classification

References