Vulnerability · Published Apr 8, 2025 · Assigned by microsoft
CVE-2025-26682ASP.NET Core and Visual Studio Denial of Service Vulnerability
High 7.5
In plain English
A high-severity resource allocation without limits in ASP.NET Core 8.0 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.7%top 22.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | dotnet8-runtime | 8.0.15-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.21 | dotnet8-runtime | 8.0.15-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.22 | dotnet8-runtime | 8.0.15-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.23 | dotnet8-runtime | 8.0.15-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.24 | dotnet8-runtime | 8.0.15-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.21 | dotnet9-runtime | 9.0.4-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.22 | dotnet9-runtime | 9.0.4-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.23 | dotnet9-runtime | 9.0.4-r0 | ALPINE-CVE-2025-26682 |
| Alpine:v3.24 | dotnet9-runtime | 9.0.4-r0 | ALPINE-CVE-2025-26682 |
| Ubuntu:22.04:LTS | dotnet6 | no fix listed | UBUNTU-CVE-2025-26682 |
| Ubuntu:22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2025-26682 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.115-8.0.15-0ubuntu1~22.04.1 | USN-7427-1 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.115-8.0.15-0ubuntu1~22.04.1 | UBUNTU-CVE-2025-26682 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.115-8.0.15-0ubuntu1~24.04.1 | UBUNTU-CVE-2025-26682 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.115-8.0.15-0ubuntu1~24.04.1 | USN-7427-1 |
| Ubuntu:25.10 | dotnet8 | 8.0.115-8.0.15-0ubuntu1 | UBUNTU-CVE-2025-26682 |
| Ubuntu:25.10 | dotnet9 | 9.0.105-9.0.4-0ubuntu1 | UBUNTU-CVE-2025-26682 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | ASP.NET Core 8.0 | 8.0 – before 8.0.15 |
| Microsoft | ASP.NET Core 9.0 | 9.0 – before 9.0.4 |
| Microsoft | Microsoft Visual Studio 2022 version 17.10 | 17.10.0 – before 17.10.13 |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0 – before 17.12.7 |
| Microsoft | Microsoft Visual Studio 2022 version 17.13 | 17.13.0 – before 17.13.6 |
| Microsoft | Microsoft Visual Studio 2022 version 17.8 | 17.8.0 – before 17.8.20 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
References
- ASP.NET Core and Visual Studio Denial of Service Vulnerability vendor-advisory, patch