Description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | ASP.NET Core 8.0 | 8.0 – < 8.0.15 | 8.0.15 |
| Microsoft | ASP.NET Core 9.0 | 9.0 – < 9.0.4 | 9.0.4 |
| Microsoft | Microsoft Visual Studio 2022 version 17.10 | 17.10.0 – < 17.10.13 | 17.10.13 |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0 – < 17.12.7 | 17.12.7 |
| Microsoft | Microsoft Visual Studio 2022 version 17.13 | 17.13.0 – < 17.13.6 | 17.13.6 |
| Microsoft | Microsoft Visual Studio 2022 version 17.8 | 17.8.0 – < 17.8.20 | 17.8.20 |
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 | 8.0.115-8.0.15-0ubuntu1 | — |
| Ubuntu 25.10 | dotnet9 | 9.0.105-9.0.4-0ubuntu1 | — |
| Ubuntu 24.04 LTS | dotnet8 | 8.0.115-8.0.15-0ubuntu1~24.04.1 | USN-7427-1 |
| Ubuntu 22.04 LTS | dotnet6 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | dotnet8 | 8.0.115-8.0.15-0ubuntu1~22.04.1 | USN-7427-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | dotnet8-runtime | 8.0.15-r0 | — |
| Alpine v3.24 | dotnet9-runtime | 9.0.4-r0 | — |
| Alpine v3.23 | dotnet8-runtime | 8.0.15-r0 | — |
| Alpine v3.23 | dotnet9-runtime | 9.0.4-r0 | — |
| Alpine v3.22 | dotnet8-runtime | 8.0.15-r0 | — |
| Alpine v3.22 | dotnet9-runtime | 9.0.4-r0 | — |
| Alpine v3.21 | dotnet8-runtime | 8.0.15-r0 | — |
| Alpine v3.21 | dotnet9-runtime | 9.0.4-r0 | — |
| Alpine v3.20 | dotnet8-runtime | 8.0.15-r0 | — |
Advisories 4
- USN-7427-1 dotnet8, dotnet9 vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- WID-SEC-2025-0748 Microsoft DeveloperTools: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2025
- NCSC-2025-0110 Kwetsbaarheden verholpen in Microsoft Developer Tools NCSC-NL (Netherlands) · Apr 8, 2025
- MSRC-CVE-2025-26682 ASP.NET Core and Visual Studio Denial of Service Vulnerability Microsoft Security Response Center · Apr 8, 2025
References
- ASP.NET Core and Visual Studio Denial of Service Vulnerability vendor-advisory patch