{"id":"CVE-2026-47303","aliases":[],"cve":{"records":[{"id":"CVE-2026-47303","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-05-18T23:53:33.898Z","published":"2026-07-14T18:45:33.438Z","modified":"2026-10-28T20:01:09.931Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-10-28T20:01:09.931Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-07-15T03:57:39.744Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47303","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-302","description":"CWE-302: Authentication Bypass by Assumed-Immutable Data","source":"microsoft"},{"id":"CWE-863","description":"CWE-863: Incorrect Authorization","source":"microsoft"},{"id":"CWE-90","description":"CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')","source":"microsoft"}],"applicability":[{"source":"microsoft","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.0","versionEndExcluding":"10.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*","versionStartIncluding":"8.0.0","versionEndExcluding":"8.0.29"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0.0","versionEndExcluding":"9.0.18"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*","versionStartIncluding":"17.12.0","versionEndExcluding":"17.12.22"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*","versionStartIncluding":"17.14.0","versionEndExcluding":"17.14.36"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*","versionStartIncluding":"18.0","versionEndExcluding":"18.7.4"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-07-13T00:00:00+00:00","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"ASP.NET Core Elevation of Privilege Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network.","score":8.8,"severity":"high","published":"2026-07-14T18:45:33.438Z","modified":"2026-10-28T20:01:09.931Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":".NET 10.0 runtime","platforms":[],"versions":[{"version":"10.0.0","status":"affected","lessThan":"10.0.10","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"},{"vendor":"Microsoft","name":".NET 8.0 runtime","platforms":[],"versions":[{"version":"8.0.0","status":"affected","lessThan":"8.0.29","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"},{"vendor":"Microsoft","name":".NET 9.0 runtime","platforms":[],"versions":[{"version":"9.0.0","status":"affected","lessThan":"9.0.18","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"},{"vendor":"Microsoft","name":"Microsoft Visual Studio 2022 version 17.12","platforms":[],"versions":[{"version":"17.12.0","status":"affected","lessThan":"17.12.22","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"},{"vendor":"Microsoft","name":"Microsoft Visual Studio 2022 version 17.14","platforms":[],"versions":[{"version":"17.14.0","status":"affected","lessThan":"17.14.36","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"},{"vendor":"Microsoft","name":"Microsoft Visual Studio 2026 version 18.7","platforms":[],"versions":[{"version":"18.0","status":"affected","lessThan":"18.7.4","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47303"],"sources":[{"name":"CVE","id":"CVE-2026-47303","modified":"2026-10-28T20:01:09.931Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":8.8}],"sourceAffected":[],"observedAt":"2026-10-29T14:38:21.053Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T03:00:34.533Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"An elevation of privilege vulnerability in ASP.NET Core allows an authorized attacker to elevate privileges over a network by bypassing authentication through assumed-immutable data. The vulnerability affects .NET 8.0, 9.0, and 10.0 runtimes, as well as Microsoft Visual Studio 2022 and 2026. An attacker must have network access.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:21:43.160Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-47303"}]}}