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CVE-2020-0602

22
FAUCET Score

CVE-2020-0602 is a denial-of-service vulnerability in ASP.NET Core, affecting Microsoft and Red Hat distributions of ASP.NET Core and Enterprise Linux. It carries a CVSS score of 7.5 (High), indicating it can be exploited remotely with low attack complexity to cause a complete denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
2.1CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_core:3.0:*:*:*:*:*:*:*
3.1CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_core:3.1:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
8.1CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.61%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0761 is in the 90th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (20)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: ASP.NET Core 2.1
View patch
microsoftpatch availablevia msrc
Product: ASP.NET Core 3.0
View patch
microsoftpatch availablevia msrc
Product: ASP.NET Core 3.1
View patch
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AppFixed in: 3.0.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Http.ConnectionsFixed in: 1.0.15
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.linux-armFixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.linux-arm64Fixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.linux-musl-x64Fixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.linux-x64Fixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.osx-x64Fixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.win-armFixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.win-x64Fixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.App.Runtime.win-x86Fixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AllFixed in: 2.1.15
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AppFixed in: 3.1.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AppFixed in: 2.1.15
redhatpatch availablevia redhat_api
Product: .NET Core on Red Hat Enterprise LinuxFixed in: rh-dotnet30-dotnet-0:3.0.102-3.el7
View patch
redhatpatch availablevia redhat_api
Product: .NET Core on Red Hat Enterprise LinuxFixed in: rh-dotnet31-dotnet-0:3.1.101-4.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: dotnet3.0-0:3.0.102-2.el8_1
View patch

Vendor Advisories (3)

nugetGHSA-23cv-jh4v-vffmmedium

Denial of service in ASP.NET Core

May 24, 2022
microsoft2020-Jan/CVE-2020-0602Important

ASP.NET Core Denial of Service Vulnerability

Jan 14, 2020
redhatCVE-2020-0602Important

dotnet: Denial of service via backpressure issue

Jan 14, 2020

References

access.redhat.com / errata/RHSA-2020:0130
Third Party Advisory
access.redhat.com / errata/RHSA-2020:0134
Third Party Advisory
portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-0602
PatchVendor Advisory