{"id":"CVE-2026-25667","aliases":["BIT-dotnet-2026-25667","BIT-dotnet-sdk-2026-25667","EUVD-2026-13148","GHSA-jc8w-j2q2-vwjx"],"status":"published","title":"ASP.NET Core Kestrel in Microsoft .NET 8.0 before 8.0.22 and .NET 9.0 before 9.0.11 allows a...","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.03186,"percentile":0.88187,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2026-03-19T00:00:00Z","modified":"2026-10-28T02:30:29Z","fixes":[{"ecosystem":"Bitnami","package":"dotnet","fixed_in":["8.0.22","9.0.11"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"dotnet-sdk","fixed_in":["8.0.22","9.0.11"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"dotnet","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.0.22"},{"introduced":"9.0.0"},{"fixed":"9.0.11"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"dotnet-sdk","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.0.22"},{"introduced":"9.0.0"},{"fixed":"9.0.11"}]}]}],"products":[{"vendor":"microsoft","product":".net"}],"references":[{"url":"https://github.com/IsaJafarov/Kestrel-DoS","tags":["Exploit","Third Party Advisory","advisory","package"]},{"url":"https://github.com/dotnet/aspnetcore/commit/96ccc40a0e095424b19506e8268b9b1a3e23d6a7#diff-667d5b3693f93a0f706ab211428998b210862f9b885d917104d2013118312626","tags":["Patch","fix"]},{"url":"https://github.com/IsaJafarov/Q3Fuzz","tags":["web","package"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25667","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-jc8w-j2q2-vwjx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25667.json","tags":["advisory"]}],"sources":{"cve":[{"id":"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.","status":"published","published":"2026-03-19T00:00:00Z","modified":"2026-04-29T14:34:11.558Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T13:41:30.911526Z"}],"euvd":[{"id":"EUVD-2026-13148","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.","status":"published","published":"2026-03-19T00:00:00Z","modified":"2026-04-29T14:34:11Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T19:05:19.922616Z"}],"ghsa":[{"id":"GHSA-jc8w-j2q2-vwjx","title":"ASP.NET Core Kestrel in Microsoft .NET 8.0 before 8.0.22 and .NET 9.0 before 9.0.11 allows a...","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.","status":"published","published":"2026-03-19T21:30:23Z","modified":"2026-04-22T18:31:37Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:07:35.199773Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-03-19T19:16:19.88Z","modified":"2026-06-17T10:25:02.18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:12:09.735529Z"}],"osv":[{"id":"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.","status":"published","published":"2026-03-19T00:00:00Z","modified":"2026-10-28T02:30:29.217345923Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:59.438965Z"},{"id":"BIT-dotnet-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.","status":"published","published":"2026-04-16T23:38:58.356Z","modified":"2026-09-08T08:46:57.054971679Z","updated_at":"2026-11-02T15:28:29.152062Z"},{"id":"BIT-dotnet-sdk-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.","status":"published","published":"2026-04-16T23:38:58.741Z","modified":"2026-09-08T08:46:45.01025117Z","updated_at":"2026-11-02T15:28:29.152062Z"}]}}