CVE-2026-70190

High

Description

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

SeverityHigh
CVSS7.3
Exploit probability—
Product.NET 10.0 runtime
PublishedOct 13, 2026
First seenOct 13, 2026

How to fix

Update
  • Microsoft .NET 10.0 runtime10.0.113 or later
  • Microsoft .NET 11.0 runtime11.0.100-rc.2 or later
  • Microsoft .NET 9.0 runtime9.0.319, 9.0.122 or later
  • Microsoft Microsoft Visual Studio 2022 version 17.1417.14.42 or later
  • Microsoft Microsoft Visual Studio 2026 version 18.1018.10.4 or later

Affected products

ProductAffected versionsFixed in
Microsoft .NET 10.0 runtime10.0.0 ≤ v < 10.0.11310.0.113
Microsoft .NET 11.0 runtime11.0.0 ≤ v < 11.0.100-rc.211.0.100-rc.2
Microsoft .NET 9.0 runtime9.0.0 ≤ v < 9.0.319, 9.0.1229.0.319, 9.0.122
Microsoft Microsoft Visual Studio 2022 version 17.1417.14.0 ≤ v < 17.14.4217.14.42
Microsoft Microsoft Visual Studio 2026 version 18.1018.10.0 ≤ v < 18.10.418.10.4

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