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.
References
| Link | Resource |
|---|---|
| https://github.com/IsaJafarov/Kestrel-DoS | Exploit Third Party Advisory |
| https://github.com/dotnet/aspnetcore/commit/96ccc40a0e095424b19506e8268b9b1a3e23d6a7#diff-667d5b3693f93a0f706ab211428998b210862f9b885d917104d2013118312626 | Patch |
Configurations
Configuration 1 (hide)
|
History
14 Apr 2026, 20:47
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Microsoft .net
Microsoft |
|
| CPE | cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* | |
| References | () https://github.com/IsaJafarov/Kestrel-DoS - Exploit, Third Party Advisory | |
| References | () https://github.com/dotnet/aspnetcore/commit/96ccc40a0e095424b19506e8268b9b1a3e23d6a7#diff-667d5b3693f93a0f706ab211428998b210862f9b885d917104d2013118312626 - Patch |
24 Mar 2026, 02:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| CWE | CWE-400 | |
| Summary |
|
19 Mar 2026, 19:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-03-19 19:16
Updated : 2026-04-14 20:47
NVD link : CVE-2026-25667
Mitre link : CVE-2026-25667
CVE.ORG link : CVE-2026-25667
JSON object : View
Products Affected
microsoft
- .net
CWE
CWE-400
Uncontrolled Resource Consumption
