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Fencer Intel
high 8.8

CVE-2020-0605 in the critical feed json

A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file.An attacker who…

published 6y ago modified 4mo ago also EUVD-2020-2101

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
18.4%
EPSS 18.4% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file.An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user, aka '.NET Framework Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0606.

Patch / fix

Is CVE-2020-0605 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-0605 updated cvss 8.8

dotnet: Bypass of WPF XAML payload prevention

  • Red Hat .NET Core 2.1 on Red Hat Enterprise Linux rh-dotnet21, rh-dotnet21-runtime Red Hat .NET Core 2.2 on Red Hat Enterprise Linux rh-dotnet22, rh-dotnet22-runtime Red Hat .NET Core 3.0 on Red Hat Enterprise Linux rh-dotnet30, rh-dotnet30-runtime Red Hat .NET Core 3.1 on Red Hat Enterprise Linux rh-dotnet31, rh-dotnet31-runtime Red Hat Enterprise Linux 8 dotnet, dotnet3.0, dotnet-host, dotnet-sdk-2.1, dotnet-sdk-3.0, dotnet-hostfxr-3.0, +10 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

18.40% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft .NET Core
  • Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
  • Microsoft Microsoft .NET Framework 3.0
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation)
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server, version 1803 (Server Core Installation)
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)
  • Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
  • Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012
  • Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
  • Microsoft Microsoft .NET Framework 4.6
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016
  • Microsoft Microsoft .NET Framework 4.8 on Windows RT 8.1
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1
  • Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems
  • Microsoft Microsoft .NET Framework 4.5.2
  • Microsoft Microsoft .NET Framework 3.5.1
  • Microsoft Microsoft .NET Framework 3.5
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for x64-based Systems
  • 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
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.