CVE-2020-1108

mediumpriority · track · 32EPSS 0.065 · 94 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

6.46% (94th) EPSS

CVSS 5 · medium

Is it mine?

161 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-23

A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Core or .NET Framework web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Core or .NET Framework application. The update addresses the vulnerability by correcting how the .NET Core or .NET Framework web application handles web requests.

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 (161)

Products and version ranges known to be affected.

Microsoft .NET Core≤ 3.1enisa_euvdEU
Microsoft .NET Core≤ 2.1enisa_euvdEU
Microsoft .NET Core 5.0≤ unspecifiedenisa_euvdEU
Microsoft Microsoft .NET Framework 2.0≤ Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2enisa_euvdEU
Microsoft Microsoft .NET Framework 2.0≤ Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2enisa_euvdEU
Microsoft Microsoft .NET Framework 3.0≤ Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2enisa_euvdEU
Microsoft Microsoft .NET Framework 3.0≤ Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2enisa_euvdEU
Microsoft Microsoft .NET Framework 3.5≤ Windows Server 2012 R2enisa_euvdEU
Microsoft Microsoft .NET Framework 3.5≤ Windows 8.1 for x64-based systemsenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5≤ Windows Server 2012 R2 (Server Core installation)enisa_euvdEU
Microsoft Microsoft .NET Framework 3.5≤ Windows 8.1 for 32-bit systemsenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5≤ Windows Server 2012enisa_euvdEU
Microsoft Microsoft .NET Framework 3.5≤ Windows Server 2012 (Server Core installation)enisa_euvdEU
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems≤ unspecifiedenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems≤ unspecifiedenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016≤ unspecifiedenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation)≤ unspecifiedenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems≤ unspecifiedenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems≤ unspecifiedenisa_euvdEU
Microsoft Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems≤ unspecifiedenisa_euvdEU

showing 20 of 161

advisories (4)

Vendor and ecosystem advisories describing this.

GHSA-3w5p-jhp5-c29q.NET Core & .NET Framework Denial of Service Vulnerability2022-05-24ghsa · osvUS
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests, aka '.NET Core & .NET Framework Denial of Service Vulnerability'.
BIT-dotnet-2020-11082024-01-31vendor · osvUS
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests, aka '.NET Core & .NET Framework Denial of Service Vulnerability'.
BIT-dotnet-sdk-2020-11082024-01-31vendor · osvUS
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests, aka '.NET Core & .NET Framework Denial of Service Vulnerability'.
BIT-powershell-2020-1108.NET Core & .NET Framework Denial of Service Vulnerability2025-09-04vendor · osvUS
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Core or .NET Framework web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Core or .NET Framework application. The update addresses the vulnerability by correcting how the .NET Core or .NET Framework web application handles web requests.

also known as (8)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv NVD CVE.org MITRE

published 2020-05-21modified 2026-08-19

references (16)

External citations — patches, advisories, analysis.

scry

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