Description
External control of file name or path in .NET, Visual Studio, and Build Tools for Visual Studio allows an authorized attacker to perform spoofing over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | .NET 8.0 | 8.0.0 – < 8.0.16 | 8.0.16 |
| Microsoft | .NET 9.0 | 9.0.0 – < 9.0.5 | 9.0.5 |
| Microsoft | Build Tools for Visual Studio 2022 | 17.0 – < Fixed Version 17.13.7 | Fixed Version 17.13.7 |
| Microsoft | Microsoft Visual Studio 2022 version 17.10 | 17.10.0 – < 17.10.15 | 17.10.15 |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0 – < 17.12.8 | 17.12.8 |
| Microsoft | Microsoft Visual Studio 2022 version 17.13 | 17.13.0 – < 17.13.7 | 17.13.7 |
| Microsoft | Microsoft Visual Studio 2022 version 17.8 | 17.8.0 – < 17.8.21 | 17.8.21 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | dotnet8 | 8.0.116-8.0.16-0ubuntu1 | — |
| Ubuntu 25.10 | dotnet9 | 9.0.106-9.0.5-0ubuntu1 | — |
| Ubuntu 24.04 LTS | dotnet8 | 8.0.116-8.0.16-0ubuntu1~24.04.1 | USN-7509-1 |
| Ubuntu 22.04 LTS | dotnet6 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | dotnet8 | 8.0.116-8.0.16-0ubuntu1~22.04.1 | USN-7509-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | dotnet-host +8 | 9.0.5-1.el10_0 | RHSA-2025:7601 |
| RHEL 10 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.el10_0 | RHSA-2025:7599 |
| RHEL 10 | dotnet8.0 +4 | 8.0.116-1.el10_0 | RHSA-2025:7599 |
| RHEL 10 | dotnet9.0 +6 | 9.0.106-1.el10_0 | RHSA-2025:7601 |
| RHEL 9 | dotnet-host +8 | 9.0.5-1.el9_6 | RHSA-2025:7600 |
| RHEL 9 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.el9_6 | RHSA-2025:7598 |
| RHEL 9 | dotnet8.0 +4 | 8.0.116-1.el9_6 | RHSA-2025:7598 |
| RHEL 9 | dotnet9.0 +6 | 9.0.106-1.el9_6 | RHSA-2025:7600 |
| RHEL 8 | dotnet +7 | 9.0.106-1.el8_10 | RHSA-2025:7571 |
| RHEL 8 | dotnet-host +8 | 9.0.5-1.el8_10 | RHSA-2025:7571 |
| RHEL 8 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.el8_10 | RHSA-2025:7589 |
| RHEL 8 | dotnet8.0 +4 | 8.0.116-1.el8_10 | RHSA-2025:7589 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | dotnet-host +8 | 8.0.16-1.el9_4 | RHSA-2025:7603 |
| RHEL 9.4 EUS | dotnet8.0 +5 | 8.0.116-1.el9_4 | RHSA-2025:7603 |
| Red Hat Hardened Images 1 | dotnet8.0 | 8.0.126-1.hum1 | RHSA-2026:9080 |
| Red Hat Hardened Images 1 | dotnet9.0 | 9.0.116-1.hum1 | RHSA-2026:9205 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | dotnet-host +8 | 9.0.5-1.el10_0 | ALSA-2025:7601 |
| AlmaLinux 10 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.el10_0 | ALSA-2025:7599 |
| AlmaLinux 10 | dotnet-sdk-8.0 +3 | 8.0.116-1.el10_0 | ALSA-2025:7599 |
| AlmaLinux 10 | dotnet-sdk-9.0 +5 | 9.0.106-1.el10_0 | ALSA-2025:7601 |
| AlmaLinux 9 | dotnet-host +8 | 9.0.5-1.el9_6 | ALSA-2025:7600 |
| AlmaLinux 9 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.el9_6 | ALSA-2025:7598 |
| AlmaLinux 9 | dotnet-sdk-8.0 +3 | 8.0.116-1.el9_6 | ALSA-2025:7598 |
| AlmaLinux 9 | dotnet-sdk-9.0 +5 | 9.0.106-1.el9_6 | ALSA-2025:7600 |
| AlmaLinux 8 | dotnet +6 | 9.0.106-1.el8_10 | ALSA-2025:7571 |
| AlmaLinux 8 | dotnet-host +8 | 9.0.5-1.el8_10 | ALSA-2025:7571 |
| AlmaLinux 8 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.el8_10 | ALSA-2025:7589 |
| AlmaLinux 8 | dotnet-sdk-8.0 +3 | 8.0.116-1.el8_10 | ALSA-2025:7589 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | dotnet8.0 | 8.0.116-1.el10_0 | RLSA-2025:7599 |
| Rocky Linux 10 | dotnet9.0 | 9.0.106-1.el10_0 | RLSA-2025:7601 |
| Rocky Linux 9 | dotnet8.0 | 8.0.116-1.el9_6 | RLSA-2025:7598 |
| Rocky Linux 8 | dotnet8.0 | 8.0.116-1.el8_10 | RLSA-2025:7589 |
| Rocky Linux 8 | dotnet9.0 | 9.0.106-1.el8_10 | RLSA-2025:7571 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | dotnet8-runtime | 8.0.16-r0 | — |
| Alpine v3.24 | dotnet9-runtime | 9.0.5-r0 | — |
| Alpine v3.23 | dotnet8-runtime | 8.0.16-r0 | — |
| Alpine v3.23 | dotnet9-runtime | 9.0.5-r0 | — |
| Alpine v3.22 | dotnet8-runtime | 8.0.16-r0 | — |
| Alpine v3.22 | dotnet9-runtime | 9.0.5-r0 | — |
| Alpine v3.21 | dotnet8-runtime | 8.0.16-r0 | — |
| Alpine v3.21 | dotnet9-runtime | 9.0.5-r0 | — |
| Alpine v3.20 | dotnet8-runtime | 8.0.16-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | dotnet +5 | 8.0.116-1.amzn2023.0.1 | ALAS2023-2025-1008 |
| Amazon Linux 2023 | dotnet-host +8 | 8.0.16-1.amzn2023.0.1 | ALAS2023-2025-1008 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | dotnet-host +8 | 9.0.6-1.0.1.el10_0 | ELSA-2025-7601 |
| Oracle Linux 10 | dotnet-hostfxr-8.0 +7 | 8.0.17-1.0.1.el10_0 | ELSA-2025-7599 |
| Oracle Linux 10 | dotnet-sdk-8.0 +3 | 8.0.117-1.0.1.el10_0 | ELSA-2025-7599 |
| Oracle Linux 10 | dotnet-sdk-9.0 +5 | 9.0.107-1.0.1.el10_0 | ELSA-2025-7601 |
| Oracle Linux 9 | dotnet-host +8 | 9.0.5-1.0.1.el9_6 | ELSA-2025-7600 |
| Oracle Linux 9 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.0.1.el9_6 | ELSA-2025-7598 |
| Oracle Linux 9 | dotnet-sdk-8.0 +3 | 8.0.116-1.0.1.el9_6 | ELSA-2025-7598 |
| Oracle Linux 9 | dotnet-sdk-9.0 +5 | 9.0.106-1.0.1.el9_6 | ELSA-2025-7600 |
| Oracle Linux 8 | dotnet +6 | 9.0.106-1.0.1.el8_10 | ELSA-2025-7571 |
| Oracle Linux 8 | dotnet-host +8 | 9.0.5-1.0.1.el8_10 | ELSA-2025-7571 |
| Oracle Linux 8 | dotnet-hostfxr-8.0 +7 | 8.0.16-1.0.1.el8_10 | ELSA-2025-7589 |
| Oracle Linux 8 | dotnet-sdk-8.0 +3 | 8.0.116-1.0.1.el8_10 | ELSA-2025-7589 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | dotnet-bootstrap-8 | 8.0.122-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | Microsoft.Build.Tasks.Core | >= 15.8.166, < 15.9.30 | 15.9.30 | GHSA-h4j7-5rxr-p4wc |
| NuGet | Microsoft.Build.Tasks.Core | >= 16.0.461, < 16.11.6 | 16.11.6 | GHSA-h4j7-5rxr-p4wc |
| NuGet | Microsoft.Build.Tasks.Core | >= 17.0.0, < 17.8.29 | 17.8.29 | GHSA-h4j7-5rxr-p4wc |
| NuGet | Microsoft.Build.Tasks.Core | >= 17.9.5, < 17.10.29 | 17.10.29 | GHSA-h4j7-5rxr-p4wc |
| NuGet | Microsoft.Build.Tasks.Core | >= 17.11.4, < 17.12.36 | 17.12.36 | GHSA-h4j7-5rxr-p4wc |
| NuGet | Microsoft.Build.Tasks.Core | >= 17.12.6, < 17.13.26 | 17.13.26 | GHSA-h4j7-5rxr-p4wc |
| NuGet | Microsoft.Build.Tasks.Core | >= 17.13.9, < 17.14.8 | 17.14.8 | GHSA-h4j7-5rxr-p4wc |
Advisories 31
- ALSA-2025:7599 Important: .NET 8.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:7601 Important: .NET 9.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:7598 Important: .NET 8.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:7600 Important: .NET 9.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:7571 Important: .NET 9.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:7589 Important: .NET 8.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:9205 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- RHSA-2026:9080 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- RHSA-2025:7603 Red Hat Security Advisory: .NET 8.0 security update Red Hat Security Advisories (RHSA) · Jul 4, 2026
- RHSA-2025:7601 Red Hat Security Advisory: .NET 9.0 security update Red Hat Security Advisories (RHSA) · Jul 4, 2026
- RHSA-2025:7599 Red Hat Security Advisory: .NET 8.0 security update Red Hat Security Advisories (RHSA) · Jul 4, 2026
- RHSA-2025:7600 Red Hat Security Advisory: .NET 9.0 security update Red Hat Security Advisories (RHSA) · Jul 4, 2026
- RHSA-2025:7598 Red Hat Security Advisory: .NET 8.0 security update Red Hat Security Advisories (RHSA) · Jul 4, 2026
- RHSA-2025:7589 Red Hat Security Advisory: .NET 8.0 security update Red Hat Security Advisories (RHSA) · Jul 4, 2026
- RHSA-2025:7571 Red Hat Security Advisory: .NET 9.0 security update Red Hat Security Advisories (RHSA) · Jul 4, 2026
- USN-7509-1 dotnet8, dotnet9 vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- RLSA-2025:7599 Important: .NET 8.0 security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:7601 Important: .NET 9.0 security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:7598 Important: .NET 8.0 security update Rocky Linux Security Advisories · Oct 7, 2025
- RLSA-2025:7571 Important: .NET 9.0 security update Rocky Linux Security Advisories · Jul 29, 2025
- RLSA-2025:7589 Important: .NET 8.0 security update Rocky Linux Security Advisories · Jul 29, 2025
- WID-SEC-2025-1015 Microsoft Developer Tools: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 1, 2025
- ELSA-2025-7601 Important: .NET 9.0 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 1, 2025
- ELSA-2025-7599 Important: .NET 8.0 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jun 30, 2025
- ALAS2023-2025-1008 Important: dotnet8.0 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 10, 2025
- MSRC-CVE-2025-26646 .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability Microsoft Security Response Center · May 22, 2025
- ELSA-2025-7600 Important: .NET 9.0 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 22, 2025
- ELSA-2025-7598 Important: .NET 8.0 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 22, 2025
- ELSA-2025-7589 Important: .NET 8.0 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 16, 2025
- ELSA-2025-7571 Important: .NET 9.0 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 16, 2025
- NCSC-2025-0153 Kwetsbaarheden verholpen in Microsoft Developer Tools NCSC-NL (Netherlands) · May 13, 2025
References
- .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability vendor-advisory patch