CVE-2026-20858 in Windows

Sumário

de MITRE • 13/01/2026

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

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• Responsável: Microsoft
• Divulgação: 13/01/2026
• Moderação: aceite
• Entrada: VDB-340788
• CPE: pronto
• CWE: CWE-416 (confirmado)
• CVSS: 7.8 (CNA)
• EPSS: 0.00299
• KEV: não
• Atividades: muito baixo
• Sector: Homeoffice, Chemical, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-20858
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-20858
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-20858/