01 Record

CVE-2025-21176

.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability

HighPUBLISHEDCNA: microsoft

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

View raw JSON

02 Description

.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.7% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-01-14 18:04Z1 YR AGO

Last updated

2026-06-09 18:29Z4 MO AGO

Reserved

2024-12-05

Assigning CNA

microsoft

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Weaknesses

CWE-126Buffer Over-readVariant

Data version

5.2

Document digest

905f23fe9bb7b952a74d24b520d71899d842991fc21afa6fe2ea4eec82817fb9

05 Affected products

VendorProductVersionsPlatforms

Microsoft.NET 8.08.0.0 to < 8.0.12—

Microsoft.NET 9.09.0.0 to < 9.0.1—

MicrosoftMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.23.0.0.0 to < 10.0.14393.7699Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems

MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.24.7.0 to < 4.7.04126.01Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation)

MicrosoftMicrosoft .NET Framework 3.5 AND 4.84.8.0 to < 4.8.04775.01Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation)

MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.14.8.1 to < 4.8.1.09294.01Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 11 Version 22H2 for ARM64-based Systems, Windows 11 Version 22H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2022, 23H2 Edition (Server Core installation)

MicrosoftMicrosoft .NET Framework 4.6.24.7.0 to < 4.7.04126.01Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation), Windows Server 2008 for x64-based Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)

MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.24.7.0 to < 4.7.04126.01Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)

MicrosoftMicrosoft .NET Framework 4.6/4.6.210.0.0.0 to < 10.0.10240.20890Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems

MicrosoftMicrosoft .NET Framework 4.84.8.0 to < 4.8.04775.01Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation)

MicrosoftMicrosoft Visual Studio 2015 Update 314.0.0 to < 14.0.24252.2—

MicrosoftMicrosoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)15.9.0 to < 15.9.69—

MicrosoftMicrosoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)16.11.0 to < 16.11.43—

MicrosoftMicrosoft Visual Studio 2022 version 17.1017.10.0 to < 17.10.10—

MicrosoftMicrosoft Visual Studio 2022 version 17.1217.12.0 to < 17.12.4—

MicrosoftMicrosoft Visual Studio 2022 version 17.617.6.0 to < 17.6.22—

MicrosoftMicrosoft Visual Studio 2022 version 17.817.8.0 to < 17.8.17—

06 References

msrc.microsoft.com.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176vendor-advisorypatch
www.herodevs.comhttps://www.herodevs.com/vulnerability-directory/cve-2025-21176

07 Fixed in

AlmaLinux 8

aspnetcore-runtime-8.0
Fixed in 8.0.12-1.el8_10
aspnetcore-runtime-9.0
Fixed in 9.0.1-1.el8_10
aspnetcore-runtime-dbg-8.0
Fixed in 8.0.12-1.el8_10
aspnetcore-runtime-dbg-9.0
Fixed in 9.0.1-1.el8_10
aspnetcore-targeting-pack-8.0
Fixed in 8.0.12-1.el8_10
aspnetcore-targeting-pack-9.0
Fixed in 9.0.1-1.el8_10
dotnet
Fixed in 9.0.102-1.el8_10
dotnet-apphost-pack-8.0
Fixed in 8.0.12-1.el8_10
dotnet-apphost-pack-9.0
Fixed in 9.0.1-1.el8_10
dotnet-host
Fixed in 9.0.1-1.el8_10
dotnet-hostfxr-8.0
Fixed in 8.0.12-1.el8_10
dotnet-hostfxr-9.0
Fixed in 9.0.1-1.el8_10
dotnet-runtime-8.0
Fixed in 8.0.12-1.el8_10
dotnet-runtime-9.0
Fixed in 9.0.1-1.el8_10
dotnet-runtime-dbg-8.0
Fixed in 8.0.12-1.el8_10
dotnet-runtime-dbg-9.0
Fixed in 9.0.1-1.el8_10
dotnet-sdk-8.0
Fixed in 8.0.112-1.el8_10
dotnet-sdk-8.0-source-built-artifacts
Fixed in 8.0.112-1.el8_10
dotnet-sdk-9.0
Fixed in 9.0.102-1.el8_10
dotnet-sdk-9.0-source-built-artifacts
Fixed in 9.0.102-1.el8_10
dotnet-sdk-aot-9.0
Fixed in 9.0.102-1.el8_10
dotnet-sdk-dbg-8.0
Fixed in 8.0.112-1.el8_10
dotnet-sdk-dbg-9.0
Fixed in 9.0.102-1.el8_10
dotnet-targeting-pack-8.0
Fixed in 8.0.12-1.el8_10
dotnet-targeting-pack-9.0
Fixed in 9.0.1-1.el8_10
dotnet-templates-8.0
Fixed in 8.0.112-1.el8_10
dotnet-templates-9.0
Fixed in 9.0.102-1.el8_10
netstandard-targeting-pack-2.1
Fixed in 9.0.102-1.el8_10

CloudLinux 8

aspnetcore-runtime-8.0
Fixed in 8.0.12-1.el8_10
aspnetcore-runtime-9.0
Fixed in 9.0.1-1.el8_10
aspnetcore-runtime-dbg-8.0
Fixed in 8.0.12-1.el8_10
aspnetcore-runtime-dbg-9.0
Fixed in 9.0.1-1.el8_10
aspnetcore-targeting-pack-8.0
Fixed in 8.0.12-1.el8_10
aspnetcore-targeting-pack-9.0
Fixed in 9.0.1-1.el8_10
dotnet
Fixed in 9.0.102-1.el8_10
dotnet-apphost-pack-8.0
Fixed in 8.0.12-1.el8_10
dotnet-apphost-pack-9.0
Fixed in 9.0.1-1.el8_10
dotnet-host
Fixed in 9.0.1-1.el8_10
dotnet-hostfxr-8.0
Fixed in 8.0.12-1.el8_10
dotnet-hostfxr-9.0
Fixed in 9.0.1-1.el8_10
dotnet-runtime-8.0
Fixed in 8.0.12-1.el8_10
dotnet-runtime-9.0
Fixed in 9.0.1-1.el8_10
dotnet-runtime-dbg-8.0
Fixed in 8.0.12-1.el8_10
dotnet-runtime-dbg-9.0
Fixed in 9.0.1-1.el8_10
dotnet-sdk-8.0
Fixed in 8.0.112-1.el8_10
dotnet-sdk-8.0-source-built-artifacts
Fixed in 8.0.112-1.el8_10
dotnet-sdk-9.0
Fixed in 9.0.102-1.el8_10
dotnet-sdk-9.0-source-built-artifacts
Fixed in 9.0.102-1.el8_10
dotnet-sdk-aot-9.0
Fixed in 9.0.102-1.el8_10
dotnet-sdk-dbg-8.0
Fixed in 8.0.112-1.el8_10
dotnet-sdk-dbg-9.0
Fixed in 9.0.102-1.el8_10
dotnet-targeting-pack-8.0
Fixed in 8.0.12-1.el8_10
dotnet-targeting-pack-9.0
Fixed in 9.0.1-1.el8_10
dotnet-templates-8.0
Fixed in 8.0.112-1.el8_10
dotnet-templates-9.0
Fixed in 9.0.102-1.el8_10
netstandard-targeting-pack-2.1
Fixed in 9.0.102-1.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Ubuntu 22.04 LTS

dotnet6
No fix yet
dotnet7
No fix yet
dotnet8
Fixed in 8.0.112-8.0.12-0ubuntu1~22.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

dotnet8
Fixed in 8.0.112-8.0.12-0ubuntu1~24.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.