CVE-2026-42899
An attacker can exploit multiple vulnerabilities in Microsoft Visual Studio, Microsoft Visual Studio Code, Microsoft .NET Framework, and Microsoft .NET to execute arbitrary code, manipulate data, escalate privileges, bypass security measures, disclose information, and conduct a denial of service attack.
CSIRTS triage
- What
- An attacker can exploit multiple vulnerabilities in Microsoft Visual Studio, Microsoft Visual Studio Code, Microsoft .NET Framework, and Microsoft .NET to execute arbitrary code, manipulate data, escalate privileges, bypass security measures, disclose information, and conduct a denial of service attack.
- Who is affected
- Users of Microsoft Developer Tools are affected.
- Urgency
- Remediation is urgent due to the high severity and potential for exploitation.
- Action
- Update Microsoft Developer Tools to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Moderate exploitation risk2.4% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 83% of all EPSS-scored CVEs.
Advisory coverage (2)
- high[UPDATE] [high] Microsoft Developer Tools: Multiple Vulnerabilitiescert-bund · 2026-07-28
- unknownMultiple vulnerabilities in Tenable Identity Exposure (June 24, 2026)cert-fr-avis · 2026-06-24
External references
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