Vulnerability details
CVE-2026-114146
Microsoft NET installed on LinuxMicrosoft NET installed on Mac OSMicrosoft NET installed on WindowsMicrosoft Visual StudioMicrosoft Microsoft.AspNetCore.Http.Connections
ASP.NET Core Elevation of Privilege Vulnerability
CVSS 3.1
9.0Critical
Remedy
Versions not listed as affected in the CVE record:
- .NET 10.0 installed on Linux — version 10.0.15 and later
- .NET 10.0 installed on Mac OS — version 10.0.15 and later
- .NET 10.0 installed on Windows — version 10.0.15 and later
- .NET 11.0 installed on Linux — version 11.0.0 and later
- .NET 11.0 installed on Mac OS — version 11.0.0 and later
- .NET 11.0 installed on Windows — version 11.0.0 and later
Official description
Incorrect authorization in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.0Critical | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | .NET 10.0 installed on Linux | 10.0.0 ≤ v < 10.0.15 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 10.0 installed on Mac OS | 10.0.0 ≤ v < 10.0.15 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 10.0 installed on Windows | 10.0.0 ≤ v < 10.0.15 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 11.0 installed on Linux | 11.0.0-preview.1 ≤ v < 11.0.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 11.0 installed on Mac OS | 11.0.0-preview.1 ≤ v < 11.0.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 11.0 installed on Windows | 11.0.0-preview.1 ≤ v < 11.0.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 8.0 installed on Linux | 8.0.0 ≤ v < 8.0.34 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 8.0 installed on Mac OS | 8.0.0 ≤ v < 8.0.34 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 8.0 installed on Windows | 8.0.0 ≤ v < 8.0.34 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 9.0 installed on Linux | 9.0.0 ≤ v < 9.0.23 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 9.0 installed on Mac OS | 9.0.0 ≤ v < 9.0.23 | CVEProject cvelistV5 (CNA) |
| Microsoft | .NET 9.0 installed on Windows | 9.0.0 ≤ v < 9.0.23 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 ≤ v < 17.14.45 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Visual Studio 2026 version 18.11 | 18.11.0 ≤ v < 18.11.4 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Visual Studio 2026 version 18.12 | 18.12.0 ≤ v < 18.12.0 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft.AspNetCore.Http.Connections | 1.2.0 ≤ v < 1.2.14 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114146 vendor-advisorypatch
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Details
- Published
- 2026-11-10
- Last updated
- 2026-11-13
- State
- Published
- Assigner (CNA)
- microsoft
- Kolun priority
- 37 · Medium
Exploit prediction (EPSS)
0.75%
Probability of exploitation in 30 days
55.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-863Incorrect Authorization