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Vulnerability · Published Feb 14, 2023 · Assigned by microsoft

CVE-2023-21808.NET and Visual Studio Remote Code Execution Vulnerability

High 7.8

In plain English

A high-severity use-after-free in Microsoft .NET Framework 3.5 and 4.6.2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)1.1%top 33.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

.NET and Visual Studio Remote Code Execution Vulnerability

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20dotnet6-build6.0.114-r0ALPINE-CVE-2023-21808
Alpine:v3.20dotnet6-runtime6.0.14-r0ALPINE-CVE-2023-21808
NuGetmicrosoft.netcore.app.runtime.win-arm7.0.3GHSA-824j-wqm8-89mj
NuGetmicrosoft.netcore.app.runtime.win-arm6.0.14GHSA-824j-wqm8-89mj
NuGetmicrosoft.netcore.app.runtime.win-arm647.0.3GHSA-824j-wqm8-89mj
NuGetmicrosoft.netcore.app.runtime.win-arm646.0.14GHSA-824j-wqm8-89mj
NuGetmicrosoft.netcore.app.runtime.win-x647.0.3GHSA-824j-wqm8-89mj
NuGetmicrosoft.netcore.app.runtime.win-x646.0.14GHSA-824j-wqm8-89mj
NuGetmicrosoft.netcore.app.runtime.win-x867.0.3GHSA-824j-wqm8-89mj
NuGetmicrosoft.netcore.app.runtime.win-x866.0.14GHSA-824j-wqm8-89mj

Affected products (as reported)

VendorProductVersions
Microsoft .NET 6.0 6.0.0 – before 6.0.14
Microsoft .NET 7.0 7.0.0 – before 7.0.3
Microsoft Microsoft .NET Framework 3.5 and 4.6.2 4.7.0 – before 10.0.10240.19747
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.0 – before 10.0.04038.03
Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.0 – before 10.0.04614.06
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1 – before 10.0.09139.02
Microsoft Microsoft .NET Framework 4.6.2 4.7.0 – before 4.7.04038.06
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0 – before 4.7.04614.08
Microsoft Microsoft .NET Framework 4.8 4.8.0 – before 4.8.04614.05
Microsoft Microsoft Visual Studio 2013 Update 5 12.0.0 – before 12.0.40700.0
Microsoft Microsoft Visual Studio 2015 Update 3 14.0.0 – before 14.0.27555.0
Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) 15.9.0 – before 15.9.52
Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) 16.11.0 – before 16.11.24
Microsoft Microsoft Visual Studio 2022 version 17.0 17.0.0 – before 17.0.19
Microsoft Microsoft Visual Studio 2022 version 17.2 17.2.0 – before 17.2.13
Microsoft Microsoft Visual Studio 2022 version 17.4 17.4.0 – before 17.4.5
Microsoft PowerShell 7.2 7.2.0 – before 7.2.10

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References