CVE-2025-21176 json
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
published 2025-01-14 21 mo ago modified 2026-09-10 1 mo ago also BIT-dotnet-2025-21176 , BIT-dotnet-sdk-2025-21176 , EUVD-2025-0073 , GHSA-gjf6-3w4p-7xfh
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.4%
- EPSS 2.4% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
Patch / fix
- nuget Microsoft.NetCore.App.Runtime.linux-arm 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.linux-arm64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.linux-musl-arm 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.linux-musl-arm64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.linux-musl-x64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.linux-x64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.osx-arm64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.osx-x64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.win-arm 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.win-arm64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.win-x64 8.0.12, 9.0.1
- nuget Microsoft.NetCore.App.Runtime.win-x86 8.0.12, 9.0.1
- bitnami dotnet 8.0.1, 9.0.1
- bitnami dotnet-sdk 8.0.101, 9.0.100
- Microsoft .NET 8.0 8.0.12
- Microsoft .NET 9.0 9.0.1
- Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 10.0.14393.7699
- Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.04126.01
- Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.04775.01
- Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1.09294.01
- Microsoft Microsoft .NET Framework 4.6.2 4.7.04126.01
- Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.04126.01
- Microsoft Microsoft .NET Framework 4.6/4.6.2 10.0.10240.20890
- Microsoft Microsoft .NET Framework 4.8 4.8.04775.01
- Microsoft Microsoft Visual Studio 2015 Update 3 14.0.24252.2
- Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) 15.9.69
- Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) 16.11.43
- Microsoft Microsoft Visual Studio 2022 version 17.10 17.10.10
- Microsoft Microsoft Visual Studio 2022 version 17.12 17.12.4
- Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.22
- dotnet8 Ubuntu 22.04 LTS 8.0.112-8.0.12-0ubuntu1~22.04.1
- dotnet8 Ubuntu 24.04 LTS 8.0.112-8.0.12-0ubuntu1~24.04.1
ubuntu advisories UBUNTU-CVE-2025-21176
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- dotnet9.0 RHEL 9 9.0.102-1.el9_5
- dotnet-host RHEL 9 9.0.1-1.el9_5
- dotnet-sdk-9.0 RHEL 9 9.0.102-1.el9_5
- dotnet-hostfxr-9.0 RHEL 9 9.0.1-1.el9_5
- dotnet-runtime-9.0 RHEL 9 9.0.1-1.el9_5
- dotnet-sdk-aot-9.0 RHEL 9 9.0.102-1.el9_5
- dotnet-sdk-dbg-9.0 RHEL 9 9.0.102-1.el9_5
- dotnet-templates-9.0 RHEL 9 9.0.102-1.el9_5
red hat advisories RHSA-2025:0532RHBA-2025:0305RHBA-2025:0304RHSA-2025:0381RHSA-2025:0382
- dotnet-sdk-8.0 AlmaLinux 8 8.0.112-1.el8_10
- dotnet-hostfxr-8.0 AlmaLinux 8 8.0.12-1.el8_10
- dotnet-runtime-8.0 AlmaLinux 8 8.0.12-1.el8_10
- dotnet-sdk-dbg-8.0 AlmaLinux 8 8.0.112-1.el8_10
- dotnet-templates-8.0 AlmaLinux 8 8.0.112-1.el8_10
- aspnetcore-runtime-8.0 AlmaLinux 8 8.0.12-1.el8_10
- dotnet-runtime-dbg-8.0 AlmaLinux 8 8.0.12-1.el8_10
- dotnet-apphost-pack-8.0 AlmaLinux 8 8.0.12-1.el8_10
almalinux advisories ALSA-2025:0381ALSA-2025:0382
- dotnet8.0 Rocky Linux 8 8.0.112-1.el8_10
- dotnet9.0 Rocky Linux 8 9.0.102-1.el8_10
rocky linux advisories RLSA-2025:0381RLSA-2025:0382
- dotnet8-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 8.0.12-r0
- dotnet9-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 9.0.1-r0
alpine advisories ALPINE-CVE-2025-21176
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
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-2025-21176 updated cvss 8.8
dotnet: .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
-
Red Hat Enterprise Linux 9 dotnet6.0, dotnet7.0, dotnet-host, dotnet-sdk-6.0, dotnet-sdk-7.0, dotnet-hostfxr-6.0, +16 moreaffected: workaround, no fix planned “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.”
-
Red Hat CodeReady Linux Builder (v. 9) dotnet-sdk-8.0-source-built-artifacts 8.0.112-1.el9_5, dotnet-sdk-9.0-source-built-artifacts 9.0.102-1.el9_5fixed: vendor fix “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHBA-2025:0304
-
Red Hat CodeReady Linux Builder EUS (v.9.4) dotnet-sdk-8.0-source-built-artifacts 8.0.112-1.el9_4fixed: vendor fix “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2025:0532
-
Red Hat Enterprise Linux AppStream (v. 8) dotnet 9.0.102-1.el8_10, dotnet-host 9.0.1-1.el8_10, dotnet8.0 8.0.112-1.el8_10, dotnet9.0 9.0.102-1.el8_10, dotnet-sdk-8.0 8.0.112-1.el8_10, dotnet-sdk-9.0 9.0.102-1.el8_10, +22 morefixed: vendor fix “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2025:0381
-
Red Hat Enterprise Linux AppStream (v. 9) dotnet-host 9.0.1-1.el9_5, dotnet8.0 8.0.112-1.el9_5, dotnet9.0 9.0.102-1.el9_5, dotnet-sdk-8.0 8.0.112-1.el9_5, dotnet-sdk-9.0 9.0.102-1.el9_5, dotnet-hostfxr-9.0 9.0.1-1.el9_5, +21 morefixed: vendor fix “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHBA-2025:0304
-
Red Hat Enterprise Linux AppStream EUS (v.9.4) dotnet8.0 8.0.112-1.el9_4, dotnet-host 8.0.12-1.el9_4, dotnet-sdk-8.0 8.0.112-1.el9_4, dotnet-hostfxr-8.0 8.0.12-1.el9_4, dotnet-runtime-8.0 8.0.12-1.el9_4, dotnet-sdk-dbg-8.0 8.0.112-1.el9_4, +8 morefixed: vendor fix “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2025:0532
-
Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-8.0-source-built-artifacts 8.0.112-1.el8_10, dotnet-sdk-9.0-source-built-artifacts 9.0.102-1.el8_10fixed: vendor fix “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.” RHSA-2025:0381
-
Red Hat Enterprise Linux 10 dotnet8.0, dotnet9.0not 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
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
2.38% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | 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 |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | Microsoft.NetCore.App.Runtime.linux-arm | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.linux-arm64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.linux-musl-arm | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.linux-musl-arm64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.linux-musl-x64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.linux-x64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.osx-arm64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.osx-x64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.win-arm | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.win-arm64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.win-x64 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| nuget | Microsoft.NetCore.App.Runtime.win-x86 | >=9.0.0, <9.0.1 >=8.0.0, <8.0.12 |
9.0.1 8.0.12 |
| bitnami | dotnet | >=8.0.0, <8.0.1 >=9.0.0, <9.0.1 |
8.0.1 9.0.1 |
| bitnami | dotnet-sdk | >=8.0.0, <8.0.101 >=9.0.0, <9.0.100 |
8.0.101 9.0.100 |
Affected products
- Microsoft .NET 8.0
- Microsoft .NET 9.0
- Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
- Microsoft Microsoft .NET Framework 3.5 AND 4.7.2
- Microsoft Microsoft .NET Framework 3.5 AND 4.8
- Microsoft Microsoft .NET Framework 3.5 AND 4.8.1
- Microsoft Microsoft .NET Framework 4.6.2
- Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
- Microsoft Microsoft .NET Framework 4.6/4.6.2
- Microsoft Microsoft .NET Framework 4.8
- Microsoft Microsoft Visual Studio 2015 Update 3
- Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
- Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)
- Microsoft Microsoft Visual Studio 2022 version 17.10
- Microsoft Microsoft Visual Studio 2022 version 17.12
- Microsoft Microsoft Visual Studio 2022 version 17.6
- Microsoft Microsoft Visual Studio 2022 version 17.8
Classification
- Weakness
-
- CWE-126 Buffer Over-read
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2025-21176
vendor-advisory, patch, web, advisory
-
herodevs.com
/vulnerability-directory/cve-2025-21176
web
-
github.com
/dotnet/runtime/security/advisories/GHSA-gjf6-3w4p-7xfh
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-21176
advisory, web
-
github.com
/dotnet/runtime
package
Sources
- CVE List CVE-2025-21176
- GitHub Advisory GHSA-gjf6-3w4p-7xfh
- NVD CVE-2025-21176
- OSV BIT-dotnet-2025-21176
- OSV BIT-dotnet-sdk-2025-21176
Fencer Vulns 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.