CVE-2020-0602

Denial of service in ASP.NET Core

7.5 HighFix available

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core 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

8.15%Down 3.1 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Record: CVE-2020-0602
CVSS 3.1: 7.5 HighCVSS:3.1/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
Updated: 2026-11-02

CVE List No score

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Record: CVE-2020-0602
Updated: 2026-11-02

EUVDEUVD-2022-1891 No score

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Record: EUVD-2022-1891
Updated: 2026-11-03

GitHub AdvisoriesGHSA-23cv-jh4v-vffm No score

Denial of service in ASP.NET Core

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Record: GHSA-23cv-jh4v-vffm
Weakness: CWE-400
Updated: 2026-11-02

OSV 7.5

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Record: CVE-2020-0602
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRHSA-2020:0130 8.1

Red Hat Security Advisory: .NET Core on Red Hat Enterprise Linux security and bug fix update

Record: RHSA-2020:0130
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVRHSA-2020:0134 8.1

Red Hat Security Advisory: .NET Core on Red Hat Enterprise Linux security and bug fix update

Record: RHSA-2020:0134
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVBIT-aspnet-core-2020-0602 No score

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Record: BIT-aspnet-core-2020-0602
Updated: 2026-11-02

OSVGHSA-23cv-jh4v-vffm No score

Denial of service in ASP.NET Core

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Record: GHSA-23cv-jh4v-vffm
Weakness: CWE-400
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`Microsoft.AspNetCore.All` NuGet	2.1.0 up to 2.1.15	2.1.15
`Microsoft.AspNetCore.App` NuGet	3.1.0 to 3.1.0	3.1.1
`Microsoft.AspNetCore.App` NuGet	3.0.0 to 3.0.0	3.0.1
`Microsoft.AspNetCore.App` NuGet	2.1.0 up to 2.1.15	2.1.15
`Microsoft.AspNetCore.Http.Connections` NuGet	1.0.0 up to 1.0.15	1.0.15
`Microsoft.AspNetCore.App.Runtime.linux-arm` NuGet	3.1.0 up to 3.1.1	3.1.1
`Microsoft.AspNetCore.App.Runtime.linux-arm64` NuGet	3.1.0 up to 3.1.1	3.1.1
`Microsoft.AspNetCore.App.Runtime.linux-musl-x64` NuGet	3.1.0 up to 3.1.1	3.1.1
`Microsoft.AspNetCore.App.Runtime.linux-x64` NuGet	3.1.0 up to 3.1.1	3.1.1
`Microsoft.AspNetCore.App.Runtime.osx-x64` NuGet	3.1.0 up to 3.1.1	3.1.1

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Affected packages
Package	Affected	Fixed
`Microsoft.AspNetCore.App.Runtime.win-arm` NuGet	3.1.0 up to 3.1.1	3.1.1
`Microsoft.AspNetCore.App.Runtime.win-x64` NuGet	3.1.0 up to 3.1.1	3.1.1
`Microsoft.AspNetCore.App.Runtime.win-x86` NuGet	3.1.0 up to 3.1.1	3.1.1
`aspnet-core` Bitnami	2.1.0 up to 2.1.1, 3.0.0 up to 3.0.1, 3.1.0 up to 3.1.1	2.1.13.0.13.1.1
`Microsoft.AspNetCore.All` NuGet	2.1.0 up to 2.1.15, plus listed versions 2.1.12.1.102.1.112.1.122.1.13 Show 9 moreShow less 2.1.142.1.22.1.32.1.42.1.52.1.62.1.72.1.82.1.9	2.1.15
`Microsoft.AspNetCore.App` NuGet	3.1.0 up to 3.1.1	3.1.1
`Microsoft.AspNetCore.App` NuGet	3.0.0 up to 3.0.1	3.0.1
`Microsoft.AspNetCore.App` NuGet	2.1.0 up to 2.1.15, plus listed versions 2.1.12.1.102.1.112.1.122.1.13 Show 9 moreShow less 2.1.142.1.22.1.32.1.42.1.52.1.62.1.72.1.82.1.9	2.1.15
`Microsoft.AspNetCore.Http.Connections` NuGet	1.0.0 up to 1.0.15, plus listed versions 1.0.11.0.21.0.31.0.4	1.0.15
`aspnetcore-runtime-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`aspnetcore-targeting-pack-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`dotnet-apphost-pack-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-apphost-pack-3.0-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-host` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-host-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-hostfxr-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-hostfxr-3.0-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-runtime-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-runtime-3.0-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-sdk-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`dotnet-sdk-3.0-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`dotnet-targeting-pack-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.2-2.el8_1	0:3.0.2-2.el8_1
`dotnet-templates-3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`dotnet3.0` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`dotnet3.0-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`dotnet3.0-debugsource` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`netstandard-targeting-pack-2.1` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:3.0.102-2.el8_1	0:3.0.102-2.el8_1
`rh-dotnet30-aspnetcore-runtime-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.2-3.el7	0:3.0.2-3.el7
`rh-dotnet30-aspnetcore-targeting-pack-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.2-3.el7	0:3.0.2-3.el7
`rh-dotnet30-dotnet` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.102-3.el7	0:3.0.102-3.el7
`rh-dotnet30-dotnet-apphost-pack-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.2-3.el7	0:3.0.2-3.el7
`rh-dotnet30-dotnet-debuginfo` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.102-3.el7	0:3.0.102-3.el7
`rh-dotnet30-dotnet-host` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.2-3.el7	0:3.0.2-3.el7
`rh-dotnet30-dotnet-hostfxr-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.2-3.el7	0:3.0.2-3.el7
`rh-dotnet30-dotnet-runtime-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.2-3.el7	0:3.0.2-3.el7
`rh-dotnet30-dotnet-sdk-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.102-3.el7	0:3.0.102-3.el7
`rh-dotnet30-dotnet-targeting-pack-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.2-3.el7	0:3.0.2-3.el7
`rh-dotnet30-dotnet-templates-3.0` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.102-3.el7	0:3.0.102-3.el7
`rh-dotnet30-netstandard-targeting-pack-2.1` Red Hat:rhel_dotnet:3.0::el7 From an advisory covering 2 CVEs	before 0:3.0.102-3.el7	0:3.0.102-3.el7
`rh-dotnet31-aspnetcore-runtime-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.1-4.el7	0:3.1.1-4.el7
`rh-dotnet31-aspnetcore-targeting-pack-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.1-4.el7	0:3.1.1-4.el7
`rh-dotnet31-dotnet` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.101-4.el7	0:3.1.101-4.el7
`rh-dotnet31-dotnet-apphost-pack-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.1-4.el7	0:3.1.1-4.el7
`rh-dotnet31-dotnet-debuginfo` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.101-4.el7	0:3.1.101-4.el7
`rh-dotnet31-dotnet-host` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.1-4.el7	0:3.1.1-4.el7
`rh-dotnet31-dotnet-hostfxr-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.1-4.el7	0:3.1.1-4.el7
`rh-dotnet31-dotnet-runtime-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.1-4.el7	0:3.1.1-4.el7
`rh-dotnet31-dotnet-sdk-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.101-4.el7	0:3.1.101-4.el7
`rh-dotnet31-dotnet-targeting-pack-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.1-4.el7	0:3.1.1-4.el7
`rh-dotnet31-dotnet-templates-3.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.101-4.el7	0:3.1.101-4.el7
`rh-dotnet31-netstandard-targeting-pack-2.1` Red Hat:rhel_dotnet:3.1::el7 From an advisory covering 2 CVEs	before 0:3.1.101-4.el7	0:3.1.101-4.el7

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
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-2020-0602 is a high vulnerability (CVSS 7.5) in Microsoft Asp.net Core, published January 14, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.15%, the 94th percentile. Fixed in Microsoft.AspNetCore.All 2.1.15.

References

Show 16 moreShow less