CVE-2026-25667

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-25667
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25667.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-25667
Aliases
Downstream
Published
2026-03-19T00:00:00Z
Modified
2026-07-08T08:09:14.807375430Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25667.json"
}
References

Affected packages

Git / github.com/dotnet/aspnetcore

Affected ranges

Type
GIT
Repo
https://github.com/dotnet/aspnetcore
Events
Introduced
3f1acb59718cadf111a0a796681e3d3509bb3381
Introduced
af22effae4069a5dfb9b0735859de48820104f5b
Fixed
ee417479933278bb5aadc5944706a96b5ef74a5d
Fixed
d3aba8fe1a0d0f5c145506f292b72ea9d28406fc
Fixed
96ccc40a0e095424b19506e8268b9b1a3e23d6a7
Database specific 
{
    "extracted_events": [
        {
            "introduced": "8.0"
        },
        {
            "fixed": "8.0.22"
        },
        {
            "introduced": "9.0"
        },
        {
            "fixed": "9.0.11"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}
Type
GIT
Repo
https://github.com/dotnet/core
Events
Introduced
d78b3180414d35d6c7d136db753474e2ae2b33df
Fixed
0e06b3b745aaf3f2f96e5f163773d20f8c7f7f50
Introduced
e18becd6171b8eb0eb4ec7ea8a0280cacfcee36b
Fixed
0e06b3b745aaf3f2f96e5f163773d20f8c7f7f50
Database specific 
{
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.22"
        },
        {
            "introduced": "9.0.0"
        },
        {
            "fixed": "9.0.11"
        }
    ],
    "cpe": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Affected versions

v10.*
v10.0.0-preview.1
v10.0.0-preview.2
v10.0.0-preview.3
v10.0.0-preview.4
v10.0.0-preview.5
v10.0.0-preview.6
v10.0.0-preview.7
v10.0.0-rc.1
v10.0.0-rc.2
v6.*
v6.0.36
v8.*
v8.0.0
v8.0.1
v8.0.10
v8.0.11
v8.0.12
v8.0.13
v8.0.14
v8.0.15
v8.0.16
v8.0.17
v8.0.18
v8.0.19
v8.0.2
v8.0.20
v8.0.21
v8.0.3
v8.0.4
v8.0.5
v8.0.7
v8.0.8
v9.*
v9.0.0
v9.0.1
v9.0.10
v9.0.2
v9.0.3
v9.0.4
v9.0.5
v9.0.6
v9.0.7
v9.0.8
v9.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25667.json"