CVE-2026-70183
ASP.NET Core Elevation of Privilege Vulnerability
No known exploitation. No EPSS score yet. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- Microsoft ASP.NET Core 10.0Affected: ≥ 10.0, < 10.0.13Upgrade to: 10.0.13Stated by: CVE record
- Microsoft ASP.NET Core 11.0Affected: ≥ 11.0, < 11.0.0-rc.2Upgrade to: 11.0.0-rc.2Stated by: CVE record
- Microsoft ASP.NET Core 8.0Affected: ≥ 8.0, < 8.0.32Upgrade to: 8.0.32Stated by: CVE record
- Microsoft ASP.NET Core 9.0Affected: ≥ 9.0, < 9.0.21Upgrade to: 9.0.21Stated by: CVE record
- Microsoft Visual Studio 2022 version 17.14Affected: ≥ 17.14.0, < 17.14.42Upgrade to: 17.14.42Stated by: CVE record
Versions as the sources state them. 1 more product has version data. Full version matrix after sign-in
What it is
From the CVE record
Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
No EPSS score yet. New CVEs are usually scored within a few days.
Lifecycle
5 events over 0 days, from the signal feeds we watch.
- Publishedweakness classified, att&ck mapped, record updated, record updated
Affected products
- ASP.NET Core 10.0OSS Libraries / web-framework
- ASP.NET Core 11.0Operating Systems / windows
- ASP.NET Core 8.0OSS Libraries / web-framework
- ASP.NET Core 9.0OSS Libraries / web-framework
- Microsoft Visual Studio 2022 version 17.14DevTools & CI / ide-editor
- Microsoft Visual Studio 2026 version 18.10Operating Systems / windows
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Scored 7.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Privilege EscalationT1068Exploitation for Privilege Escalationmedium confidence
Sources
Watch the software you run.
My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.
We'll flag the next CVE, public exploit or patch for ASP.NET Core 10.0, not every advisory.
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- The full version matrix and every affected product
- Exploit links, proofs of concept and Metasploit modules
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