CVE-2026-42909
An attacker can exploit multiple vulnerabilities in various versions of Microsoft Windows and Microsoft Windows Server to gain administrative rights, execute arbitrary code, bypass security measures, manipulate and disclose data, or conduct spoofing attacks.
CSIRTS triage
- What
- Multiple vulnerabilities can be exploited to gain administrative rights and execute arbitrary code.
- Who is affected
- Various versions of Microsoft Windows and Windows Server are affected.
- Urgency
- Remediation is urgent due to the high severity and potential for significant impact.
- Action
- Install the latest security updates for Microsoft Windows.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.
Advisory coverage (2)
- high[UPDATE] [high] Microsoft Windows: Multiple vulnerabilitiescert-bund · 2026-08-25
- highCVE-2026-42909: Remote Desktop Client Remote Code Execution Vulnerabilitymsrc · 2026-06-09
External references
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