CVE-2026-56170
An attacker can exploit multiple vulnerabilities in Microsoft Visual Studio Code, .NET Framework, Microsoft .NET, Visual Studio 2022, and Visual Studio 2026 to gain elevated permissions, including administrative rights, execute arbitrary code, bypass security measures, manipulate or disclose data, trigger a Denial-of-Service state, or conduct spoofing attacks.
CSIRTS triage
- What
- Multiple vulnerabilities in Microsoft Developer Tools can be exploited to gain elevated permissions and execute arbitrary code.
- Who is affected
- Users of Microsoft Visual Studio Code, .NET Framework, and Visual Studio are affected.
- Urgency
- Remediation is high priority due to the potential for significant impact.
- Action
- Update to the latest versions of Microsoft Developer Tools.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Moderate exploitation risk1.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 60% of all EPSS-scored CVEs.
Advisory coverage (6)
- high[NEW] [high] Microsoft DeveloperTools: Multiple vulnerabilitiescert-bund · 2026-07-23
- highGHSA-j8gr-8fp3-5q5h: Microsoft Security Advisory CVE-2026-56170 – .NET Denial of Service Vulnerabilityghsa · 2026-07-21
- unknownMultiple vulnerabilities in Microsoft .Net (July 15, 2026)cert-fr-avis · 2026-07-15
- unknownNCSC-2026-0235 [1.00] [M/H] Vulnerabilities fixed in Microsoft Developer Toolsncsc-nl · 2026-07-14
- highCVE-2026-56170: Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized at…nvd · 2026-07-14
- highCVE-2026-56170: ASP.NET Core Denial of Service Vulnerabilitymsrc · 2026-07-14
External references
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