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CVE-2026-114148— ASP.NET Core Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft .NET 10.0 installed on Linux
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.

ASP.NET Core 中的默认权限配置不当，允许已授权的攻击者在本地提升权限。

CVSS 7.8 · High

Possible ATT&CK Techniques 1 AI

T1548.003 · Sudo and Sudo Caching

Affected Version Matrix 14

VendorProduct Version RangeStatus
Microsoft .NET 10.0 installed on Linux 10.0.0< 10.0.403 affected
Microsoft .NET 10.0 installed on Mac OS 10.0.0< 10.0.403 affected
Microsoft .NET 10.0 installed on Windows 10.0.0< 10.0.403 affected
Microsoft .NET 11.0 installed on Linux 11.0.0-preview.1< 11.0.100-rc.3 affected
Microsoft .NET 11.0 installed on Mac OS 11.0.0-preview.1< 11.0.100-rc.3 affected
Microsoft .NET 11.0 installed on Windows 11.0.0-preview.1< 11.0.100-rc.3 affected
Microsoft .NET 8.0 installed on Linux 8.0.0< 8.0.427 affected
Microsoft .NET 8.0 installed on Mac OS 8.0.0< 8.0.427 affected
Microsoft .NET 8.0 installed on Windows 8.0.0< 8.0.427 affected
Microsoft .NET 9.0 installed on Linux 9.0.0< 9.0.320 affected
Microsoft .NET 9.0 installed on Mac OS 9.0.0< 9.0.320 affected
Microsoft .NET 9.0 installed on Windows 9.0.0< 9.0.320 affected
Microsoft .NET source-build Linux tarballs (all archive types) 8.0.100< 10.0.403-servicing.26523.112 affected
Microsoft ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published) 8.0.0< 9.0.22 affected
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I. Basic Information for CVE-2026-114148

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
ASP.NET Core Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect default permissions in ASP.NET Core allows an authorized attacker to elevate privileges locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft .NET 10.0 installed on Linux 10.0.0 ~ 10.0.403 -
Microsoft .NET 10.0 installed on Mac OS 10.0.0 ~ 10.0.403 -
Microsoft .NET 10.0 installed on Windows 10.0.0 ~ 10.0.403 -
Microsoft .NET 11.0 installed on Linux 11.0.0-preview.1 ~ 11.0.100-rc.3 -
Microsoft .NET 11.0 installed on Mac OS 11.0.0-preview.1 ~ 11.0.100-rc.3 -
Microsoft .NET 11.0 installed on Windows 11.0.0-preview.1 ~ 11.0.100-rc.3 -
Microsoft .NET 8.0 installed on Linux 8.0.0 ~ 8.0.427 -
Microsoft .NET 8.0 installed on Mac OS 8.0.0 ~ 8.0.427 -
Microsoft .NET 8.0 installed on Windows 8.0.0 ~ 8.0.427 -
Microsoft .NET 9.0 installed on Linux 9.0.0 ~ 9.0.320 -
Microsoft .NET 9.0 installed on Mac OS 9.0.0 ~ 9.0.320 -
Microsoft .NET 9.0 installed on Windows 9.0.0 ~ 9.0.320 -
Microsoft .NET source-build Linux tarballs (all archive types) 8.0.100 ~ 10.0.403-servicing.26523.112 -
Microsoft ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published) 8.0.0 ~ 9.0.22 -

II. Public POCs for CVE-2026-114148

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III. Intelligence Information for CVE-2026-114148

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Other References for CVE-2026-114148 (1)

Same Patch Batch · Microsoft · 2026-10-29 · 15 CVEs total

CVE-2026-88077 8.8 HIGH Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
CVE-2026-96196 8.8 HIGH Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2026-96203 8.8 HIGH Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
CVE-2026-96192 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-96199 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-96198 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-85890 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-85897 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-85899 8.1 HIGH Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
CVE-2026-96187 7.4 HIGH Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
CVE-2026-88090 5.4 MEDIUM Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
CVE-2026-88078 4.3 MEDIUM Microsoft Edge (Chromium-based) Spoofing Vulnerability
CVE-2026-85330 4.3 MEDIUM Microsoft Edge for Android Security Feature Bypass Vulnerability
CVE-2026-20942 4.3 MEDIUM Microsoft Edge (Chromium-based) Spoofing Vulnerability

IV. Related Vulnerabilities

Same product: .NET 10.0 installed on Linux
Same vendor: Microsoft
Same weakness: CWE-276