CVE-2026-70161HighCVSS 7.3
.NET Elevation of Privilege Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Improper limitation of a pathname to a restricted directory ('path traversal') in .NET allows an authorized attacker to elevate privileges locally.
🎯 Affected products5
- .NET 10.0 runtime installed on Windows
- .NET 11.0 runtime installed on Windows
- .NET 9.0 runtime installed on Windows
- Microsoft Visual Studio 2022 version 17.14
- Microsoft Visual Studio 2026 version 18.10
✅ Remediation
KBRelease Notes (Security Update) — fixed build 11.0.100-rc.2 KB5130035 (Security Update) — fixed build 9.0.319, 9.0.122 KB5130036 (Security Update) — fixed build 10.0.402 KBRelease Notes (Security Update) — fixed build 18.10.4 KBRelease Notes (Security Update) — fixed build 17.14.42
🔗 References (11)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70161
- patchhttps://dotnet.microsoft.com/download/dotnet/11.0
- referencehttps://github.com/dotnet/announcements/issues/453
- patchhttps://dotnet.microsoft.com/download/dotnet/9.0
- referencehttps://support.microsoft.com/help/5130035
- patchhttps://dotnet.microsoft.com/download/dotnet/10.0
- referencehttps://support.microsoft.com/help/5130036
- patchhttps://learn.microsoft.com/en-us/visualstudio/releases/2026/release-history
- referencehttps://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes
- patchhttps://learn.microsoft.com/en-us/visualstudio/releases/2022/release-history
- referencehttps://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes