CVE-2026-109481
High CVSS 7.5Published 2026-11-10 ยท last changed 2026-11-10
The fix
Microsoft publishes remediation for this across 1 product branch. The fixed build differs per Windows version, so the row that matters is the one matching the machine you are looking at.
| Windows version | Fixed in build | Update | Released |
|---|---|---|---|
| .NET 11.0 installed on Windows | 11.0.0 | configuration change | 2026-11-10 |
Having the KB is not the same as knowing whether a machine has it. Windows updates supersede each other, so the update you installed often covers a fix that shipped in an earlier one. Paste your build into the patch checker and it walks that chain for you.
What it is
Cross-site request forgery (csrf) in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Sources
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H