CVE-2018-8409

mediumpriority · track · 32EPSS 0.066 · 94 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

6.56% (94th) EPSS

CVSS 5 · medium

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-26

A denial of service vulnerability exists when System.IO.Pipelines improperly handles requests, aka "System.IO.Pipelines Denial of Service." This affects .NET Core 2.1, System.IO.Pipelines, ASP.NET Core 2.1.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20US

affected products (12)

Products and version ranges known to be affected.

Microsoft .NET Core≤ 2.1enisa_euvdEU
Microsoft ASP.NET Core≤ 2.1enisa_euvdEU
Microsoft System.IO.Pipelines≤ System.IO.Pipelinesenisa_euvdEU
Microsoft Corp .NET Core≤ 2.1fstec_bduRU
Microsoft Corp ASP.NET Core≤ 2.1fstec_bduRU
Microsoft Corp System.IO.Pipelines≤ 4.5.1fstec_bduRU
microsoft .net core2.1 → 2.1.4nvdUScpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*
microsoft asp.net core2.1 → 2.1.4nvdUScpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
microsoft system.io.pipelines= 4.5.0nvdUScpe:2.3:a:microsoft:system.io.pipelines:*:*:*:*:*:*:*:*
NuGet Microsoft.AspNetCore.All2.1.0 → 2.1.4osvUSpkg:nuget/Microsoft.AspNetCore.All
NuGet Microsoft.AspNetCore.App2.1.0 → 2.1.4osvUSpkg:nuget/Microsoft.AspNetCore.App
NuGet System.IO.Pipelines4.5.0 → 4.5.1osvUSpkg:nuget/System.IO.Pipelines

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-j378-6mmw-hqfrDenial of service vulnerability exists when System.IO.Pipelines improperly handles requests2018-10-16ghsa · osvUS
A denial of service vulnerability exists when System.IO.Pipelines improperly handles requests, aka "System.IO.Pipelines Denial of Service." This affects .NET Core 2.1, System.IO.Pipelines, ASP.NET Core 2.1.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2018-09-13modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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