CVE-2026-102870: high-severity vulnerability in Microsoft.AspNetCore.Components.WebAssembly.Ser…
ASP.NET Core Remote Code Execution Vulnerability
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.8%
exploitation probability
0.8%top 45% of all CVEs
observed exploitation
nono source reports it
Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Microsoft.AspNetCore.Components.WebAssembly.ServerMicrosoft · Microsoft Visual Studio 2022 version 17.14Microsoft · Microsoft Visual Studio 2026 version 18.10Related CVEs — Microsoft.AspNetCore.Components.WebAssembly.Ser…
In the same product, most dangerous first.
CVE-2025-55315CRITICALASP.NET Security Feature Bypass VulnerabilityEPSS 65.9%CVE-2025-47959HIGHVisual Studio Remote Code Execution VulnerabilityEPSS 10.7%CVE-2026-50646HIGH.NET Framework Remote Code Execution VulnerabilityEPSS 4.0%CVE-2025-53773HIGHGitHub Copilot and Visual Studio Remote Code Execution VulnerabilityEPSS 3.2%CVE-2026-32203HIGH.NET and Visual Studio Denial of Service VulnerabilityEPSS 2.4%CVE-2026-32178HIGH.NET Spoofing VulnerabilityEPSS 2.1%