CVE-2026-26171HighCVSS 7.5
.NET Denial of Service Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.
🎯 Affected products10
- .NET 10.0 installed on Linux
- .NET 10.0 installed on Mac OS
- .NET 8.0 installed on Linux
- .NET 8.0 installed on Mac OS
- .NET 8.0 installed on Windows
- .NET 9.0 installed on Linux
- .NET 9.0 installed on Mac OS
- .NET 9.0 installed on Windows
- PowerShell 7.5
- PowerShell 7.6
✅ Remediation
KBRelease Notes (Security Update) — fixed build 7.5.6 KB5086095 (Security Update) — fixed build 10.0.6 KB5086096 (Security Update) — fixed build 8.0.26 KB5086097 (Security Update) — fixed build 9.0.15 KBRelease Notes (Security Update) — fixed build 7.6.1
🔗 References (8)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171
- patchhttps://github.com/PowerShell/Announcements/issues/83
- patchhttps://dotnet.microsoft.com/download/dotnet/10.0
- referencehttps://support.microsoft.com/help/5086095
- patchhttps://dotnet.microsoft.com/download/dotnet/8.0
- referencehttps://support.microsoft.com/help/5086096
- patchhttps://dotnet.microsoft.com/download/dotnet/9.0
- referencehttps://support.microsoft.com/help/5086097