CyberICT

CVE-2026-70179

Microsoft · Published October 13, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

ASP.NET Core Elevation of Privilege Vulnerability. Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Affected Products

  • Microsoft Visual Studio 2026 version 18.10
  • Microsoft Visual Studio 2022 version 17.14
  • Microsoft.AspNetCore.Authentication.Negotiate on .NET 10.0 installed on Windows
  • Microsoft.AspNetCore.Authentication.Negotiate on .NET 10.0 installed on Linux

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C