CVE-2026-58641
An attacker can exploit multiple vulnerabilities in Microsoft Visual Studio Code, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows Server 2016, Microsoft .NET Framework, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2025, Microsoft PowerShell, Microsoft Windows, Microsoft .NET, Microsoft Visual Studio 2022, and Microsoft Visual Studio 2026 to execute arbitrary code, elevate privileges, conduct a denial of service attack, disclose information, and bypass security measures.
CSIRTS triage
- What
- Multiple vulnerabilities across developer tools and infrastructure products enable code execution, privilege escalation, denial-of-service, information disclosure, and security bypass.
- Who is affected
- Deployments of Visual Studio Code, Visual Studio 2022/2026, .NET Framework/.NET, PowerShell, and Windows Server 2012-2025.
- Urgency
- High severity affecting multiple critical platforms; widespread impact requires immediate coordinated patching.
- Action
- Apply patches for all eight CVEs (CVE-2026-70335, CVE-2026-69306, CVE-2026-69278, CVE-2026-70336, CVE-2026-47285, CVE-2026-69320, CVE-2026-59113, CVE-2026-58650) across all affected Microsoft products.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Advisory coverage (5)
- high[NEW] [high] Microsoft Developer Tools: Multiple Vulnerabilitiescert-bund · 2026-08-14
- unknownMultiple vulnerabilities in Microsoft .Net (August 12, 2026)cert-fr-avis · 2026-08-12
- unknownNCSC-2026-0285 [1.00] [M/H] Vulnerabilities patched in Microsoft Developer Toolsncsc-nl · 2026-08-11
- highCVE-2026-58641: Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges l…nvd · 2026-08-11
- highCVE-2026-58641: .NET Elevation of Privilege Vulnerabilitymsrc · 2026-08-11
External references
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