CVE-2026-40372— ASP.NET Core Elevation of Privilege Vulnerability
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I. Basic Information for CVE-2026-40372
Vulnerability Information
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Vulnerability Title
ASP.NET Core Elevation of Privilege Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
密码学签名的验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft ASP.NET Core 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft ASP.NET Core是美国微软（Microsoft）公司的一框跨平台开源框架。该框架用于构建Web应用、物联网应用和移动后端等基于云的应用程序。 Microsoft ASP.NET Core存在数据伪造问题漏洞，该漏洞源于加密签名验证不当，可能导致未经授权的攻击者通过网络提升权限。
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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | ASP.NET Core 10.0 | 10.0 ~ 10.0.7 | - | |
| Microsoft | Microsoft Visual Studio 2026 version 18.5 | 18.5.0 ~ 18.5.2 | - |
II. Public POCs for CVE-2026-40372
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: Microsoft
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Azure Managed Instance for Apache Cassandra Remote Code Exec
Same weakness: CWE-347
- CVE-2026-42193
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Improper Verification of Cryptographic Signature in Elastic
V. Comments for CVE-2026-40372
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