CVE-2017-8585

Improper Input Validation in Microsoft.NETCore.App

7.5 HighFix available

Microsoft .NET Framework 4.6, 4.6.1, 4.6.2, and 4.7 allow an attacker to send specially crafted requests to a .NET web application, resulting in denial of service, aka .NET Denial of Service Vulnerability.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

9.50%Down 4.2 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Record: CVE-2017-8585
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-8585
Updated: 2026-11-02

EUVDEUVD-2022-3146 No score

Record: EUVD-2022-3146
Updated: 2026-11-03

GitHub AdvisoriesGHSA-8884-xcr4-r68p 7.5

Improper Input Validation in Microsoft.NETCore.App

Record: GHSA-8884-xcr4-r68p
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-20
Updated: 2026-11-02

OSVGHSA-8884-xcr4-r68p 7.5

Improper Input Validation in Microsoft.NETCore.App

Record: GHSA-8884-xcr4-r68p
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-20
Updated: 2026-11-02

OSVRHSA-2017:3248 5.9

Red Hat Security Advisory: .NET Core security update

Record: RHSA-2017:3248
CVSS 3.0: 5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`Microsoft.NETCore.App` NuGet	1.0.0 up to 1.0.7	1.0.7
`Microsoft.NETCore.App` NuGet	1.1.0 up to 1.1.4	1.1.4
`Microsoft.NETCore.App` NuGet	1.0.0 up to 1.0.7, plus listed versions 1.0.11.0.31.0.41.0.51.0.5-servicing-004880-00	1.0.7
`Microsoft.NETCore.App` NuGet	1.1.0 up to 1.1.4, plus listed versions 1.1.11.1.2	1.1.4
`rh-dotnetcore10-dotnetcore` Red Hat:rhel_dotnet:1.0::el7	before 0:1.0.8-1.el7	0:1.0.8-1.el7
`rh-dotnetcore10-dotnetcore-debuginfo` Red Hat:rhel_dotnet:1.0::el7	before 0:1.0.8-1.el7	0:1.0.8-1.el7
`rh-dotnetcore11-dotnetcore` Red Hat:rhel_dotnet:1.1::el7	before 0:1.1.5-1.el7	0:1.1.5-1.el7
`rh-dotnetcore11-dotnetcore-debuginfo` Red Hat:rhel_dotnet:1.1::el7	before 0:1.1.5-1.el7	0:1.1.5-1.el7
`rh-dotnet20-dotnet` Red Hat:rhel_dotnet:2.0::el7	before 0:2.0.3-4.el7	0:2.0.3-4.el7
`rh-dotnet20-dotnet-debuginfo` Red Hat:rhel_dotnet:2.0::el7	before 0:2.0.3-4.el7	0:2.0.3-4.el7
`rh-dotnet20-dotnet-host` Red Hat:rhel_dotnet:2.0::el7	before 0:2.0.3-4.el7	0:2.0.3-4.el7
`rh-dotnet20-dotnet-runtime-2.0` Red Hat:rhel_dotnet:2.0::el7	before 0:2.0.3-4.el7	0:2.0.3-4.el7
`rh-dotnet20-dotnet-sdk-2.0` Red Hat:rhel_dotnet:2.0::el7	before 0:2.0.3-4.el7	0:2.0.3-4.el7

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-8585 is a high vulnerability (CVSS 7.5) in Microsoft .net Framework, published July 11, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.50%, the 95th percentile. Fixed in Microsoft.NETCore.App 1.0.7.

References

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