{"id":"CVE-2026-70186","published":"2026-10-13T19:00:25Z","modified":"2026-10-30T19:07:39Z","title":"ASP.NET Core Denial of Service Vulnerability","vendor":"Microsoft","product":"ASP.NET Core 10.0","tier":"tail","description":{"text":"Deadlock in ASP.NET Core allows an unauthorized attacker to deny service over a network.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00959,"percentile":0.61474,"provenance":"source"},"cwes":[{"id":"CWE-833","name":"Deadlock"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70186","tags":["vendor-advisory","patch"]}],"priority":{"score":17.5,"factors":[{"name":"EPSS percentile","points":12.29},{"name":"CVSS severity","points":5.25}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"ASP.NET Core 10.0","versions":[">= 10.0, < 10.0.13"]},{"vendor":"Microsoft","product":"ASP.NET Core 8.0","versions":[">= 8.0, < 8.0.32"]},{"vendor":"Microsoft","product":"ASP.NET Core 9.0","versions":[">= 9.0, < 9.0.21"]},{"vendor":"Microsoft","product":"Microsoft Visual Studio 2022 version 17.14","versions":[">= 17.14.0, < 17.14.42"]},{"vendor":"Microsoft","product":"Microsoft Visual Studio 2026 version 18.10","versions":[">= 18.10.0, < 18.10.4"]}],"affected":[{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.linux-arm","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.linux-arm64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.linux-musl-x64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.linux-x64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.osx-arm64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.osx-x64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.win-arm64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"},{"ecosystem":"NuGet","package":"Microsoft.AspNetCore.App.Runtime.win-x64","vulnerableRanges":[">=8.0.0, <8.0.32",">=10.0.0, <10.0.13",">=9.0.0, <9.0.21"],"patched":["8.0.32","10.0.13","9.0.21"],"from":["GHSA-mf4x-w4gh-4656"],"provenance":"source"}],"euvd":{"id":"EUVD-2026-99689","exploited":false,"provenance":"source"}}