CVE-2026-57099: ASP.NET Core Denial of Service Vulnerability
Overview
- Severity
- High (CVSS 7.5)
- CVSS 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
- Category
- Denial of Service
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Less Likely
- Patch Tuesday
- 2026-Sep
- Released
- 2026-09-08
- Last Updated
- 2026-09-22
- EPSS Score
- 1.17% (percentile: 67.3%)
Description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Affected Products (1)
Developer Tools
- Microsoft.AspNetCore.OData
Acknowledgments
<a href="https://www.linkedin.com/in/đức-nguyễn-văn-minh-19a925287/">Nguyen Van Minh Duc</a> with <a href="https://saigonnewport.com.vn/">Saigon Newport Corporation</a>, <a href="https://www.linkedin.com/in/nguyen-hoang-quoc-an-009863267/">Nguyen Hoang Quoc An</a> with <a href="https://lp.com.vn/">Lien Phat Technology Corporation</a>, <a href="https://x.com/kookiz/">Kevin Gosse</a>
Revision History
- 2026-09-08: Information published.
- 2026-09-22: Updated an acknowledgement. This is an informational change only.