cvedb.io
CVE-2026-25667
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-03-19T19:16:19.880 · Last modified 2026-06-17T10:25:02.180

Summary

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

microsoft — .net

Does this affect you?

Add your gear to cvedb and we'll alert you only when microsoft ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.