High MSRC-CVE-2026-109481 1 CVE

ASP.NET Core Elevation of Privilege Vulnerability

Published Nov 10, 2026 · Updated Nov 11, 2026 · Revision 2

Vendor: Microsoft

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
11.0.0 — https://github.com/dotnet/core/blob/main/release-notes/11.0/11.0.0/11.0.0.md
18.12.0 — https://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes

Vulnerabilities 1

High 7.5

CVE-2026-109481

ASP.NET Core Elevation of Privilege Vulnerability

Cross-site request forgery (csrf) in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

Microsoft Microsoft Visual Studio 2026 version 18.12 .NET 11.0 installed on Windows .NET 11.0 installed on Linux Linux Windows macOS Ubuntu NuGet

Nov 10, 2026

Revision history

2026-11-11 #2
Changes made to the security updates links and information. This is an informational change only.
2026-11-10 #1
Information published.

References

CVE-2026-109481 ASP.NET Core Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109481
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss