Vulnerability Intelligence Report
ASP.NET Core Elevation of Privilege Vulnerability
CVE-2026-47303
Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:0.74%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | .NET 10.0 | 10.0.0 < 10.0.10 (affected) |
| Microsoft | .NET 8.0 | 8.0.0 < 8.0.29 (affected) |
| Microsoft | .NET 9.0 | 9.0.0 < 9.0.18 (affected) |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0 < 17.12.22 (affected) |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 < 17.14.36 (affected) |
| Microsoft | Microsoft Visual Studio 2026 version 18.7 | 18.0 < 18.7.4 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.736%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-05-18T23:53:33 |
| Published | 2026-07-14T18:45:33 |
| Patch Date | 2026-07-14 |
| Last Updated | 2026-09-17T22:28:32 |
Community Chatter & Buzz