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CVE-2026-57099— ASP.NET Core Denial of Service Vulnerability

Quick assessment

Affected
Microsoft AspNetCore.OData
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft ASP.NET Core是美国Microsoft公司开源的一款跨平台的Web开发框架。 Microsoft ASP.NET Core存在资源管理错误漏洞，该漏洞源于资源分配不受限制或节流，可能导致未经授权的攻击者通过网络实施拒绝服务攻击。

CVSS 7.5 · High EPSS 1.17% · P67

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft AspNetCore.OData 9.0.0< 7.8.1 affected
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I. Basic Information for CVE-2026-57099

Vulnerability Information
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Vulnerability Title
ASP.NET Core Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft ASP.NET Core 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft ASP.NET Core是美国Microsoft公司开源的一款跨平台的Web开发框架。 Microsoft ASP.NET Core存在资源管理错误漏洞，该漏洞源于资源分配不受限制或节流，可能导致未经授权的攻击者通过网络实施拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft AspNetCore.OData 9.0.0 ~ 7.8.1 -

II. Public POCs for CVE-2026-57099

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III. Intelligence Information for CVE-2026-57099

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Vendor Advisories for CVE-2026-57099 (1)

Same Patch Batch · Microsoft · 2026-09-08 · 966 CVEs total

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Showing top 20 of 966 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: Microsoft
Same weakness: CWE-770