CVE-2026-70197: Microsoft Visual Studio 2022 Version 17.14

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.

Affected products

• Microsoft Microsoft Visual Studio 2022 Version 17.14: from 17.14.0, before 17.14.42 (fixed in 17.14.42)
• Microsoft Microsoft Visual Studio 2026 Version 18.10: from 18.10.0, before 18.10.4 (fixed in 18.10.4)
• Microsoft Net 10.0: from 10.0.0, before 10.0.13 (fixed in 10.0.13)
• Microsoft Net 11.0: from 11.0.0, before 11.0.0-rc.2 (fixed in 11.0.0-rc.2)
• Microsoft Net 8.0: from 8.0.0, before 8.0.32 (fixed in 8.0.32)
• Microsoft Net 9.0: from 9.0.0, before 9.0.21 (fixed in 9.0.21)

Affected packages

• Microsoft.NETCore.App.Runtime.win-arm64 (NuGet)
• Microsoft.NETCore.App.Runtime.win-x86 (NuGet)
• Microsoft.NetCore.App.Runtime.win-x64 (NuGet)

Published 2026-10-13. Last modified 2026-10-14.