Authenticated privilege escalation via shared-resource race
Published Oct 13, 2026 · Updated Oct 13, 2026
Race condition in Microsoft ASP.NET Core allows remote authenticated users to elevate privileges over a network using shared resources. The available CNA record does not identify the shared resource, affected function, or incorrect synchronization operation. Exploitation requires authorized access; the required role and resulting privilege level are unspecified.
Summary
What happened
Race condition in Microsoft ASP.NET Core allows remote authenticated users to elevate privileges over a network using shared resources. The available CNA record does not identify the shared resource, affected function, or incorrect synchronization operation. Exploitation requires authorized access; the required role and resulting privilege level are unspecified.
The record
- CVE
- CVE-2026-70183
- Published
- Oct 13, 2026
- Updated
- Oct 13, 2026
- Vendor
- Microsoft Corporation
- Product
- ASP.NET Core 8.0
- Classifications
- CWE-362
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 13, 2026CVE publishedPublication date reported by the CVE source.
- Oct 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=8.0 <8.0.32
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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