by Kastro
Paper/Archive/CVE-2026-114146

CVE-2026-114146

Microsoft .NET 10.0 installed on Linux — ASP.NET Core Elevation of Privilege Vulnerability

CVSS 9.0
critical.is priorityof 100
27
CVSS 9.0 (CNA)9.0 / 10 × 3027.0Not in CISA KEV+300.0No EPSS score.000 × 200.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Incorrect authorization in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Affected

ProductAffectedFixed inSource
.NET 10.0 installed on Linux10.0.0 – < 10.0.1510.0.15CNA
.NET 10.0 installed on Mac OS10.0.0 – < 10.0.1510.0.15CNA
.NET 10.0 installed on Windows10.0.0 – < 10.0.1510.0.15CNA
.NET 11.0 installed on Linux11.0.0-preview.1 – < 11.0.011.0.0CNA
.NET 11.0 installed on Mac OS11.0.0-preview.1 – < 11.0.011.0.0CNA
.NET 11.0 installed on Windows11.0.0-preview.1 – < 11.0.011.0.0CNA
.NET 8.0 installed on Linux8.0.0 – < 8.0.348.0.34CNA
.NET 8.0 installed on Mac OS8.0.0 – < 8.0.348.0.34CNA
.NET 8.0 installed on Windows8.0.0 – < 8.0.348.0.34CNA
.NET 9.0 installed on Linux9.0.0 – < 9.0.239.0.23CNA
.NET 9.0 installed on Mac OS9.0.0 – < 9.0.239.0.23CNA
.NET 9.0 installed on Windows9.0.0 – < 9.0.239.0.23CNA

Scores by source

microsoft (CNA)9.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-114146