CVE-2026-70183
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Race Condition in ASP.NET Core Elevates Privileges
Vulnerability report for CVE-2026-70183, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-13
Last updated on: 2026-10-13
Assigner: Microsoft Corporation
Description
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Microsoft | ASP.NET | Core 10.0 10.0 |
| Microsoft | ASP.NET | Core 11.0 11.0 |
| Microsoft | ASP.NET | Core 8.0 8.0 |
| Microsoft | ASP.NET | Core 9.0 9.0 |
| Microsoft | Microsoft | Visual Studio 2022 version 17.14 17.14.0 |
| Microsoft | Microsoft | Visual Studio 2026 version 18.10 18.10.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-362 | The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. |
