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    <title>Privilege-Escalation on Jorge Castañeda</title>
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      <title>CVE-2026-41091 — RedSun: Microsoft Defender como escalador de privilegios</title>
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      <pubDate>Mon, 25 May 2026 14:00:00 -0500</pubDate>
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      <description>CVE-2026-41091 (RedSun / BlueHammer): symlink attack en Malware Protection Engine → SYSTEM. Zero-day activo en el catálogo CISA KEV, deadline 3 de junio de 2026. MITRE ATT&amp;amp;CK, KQL hunting queries y playbook SOC completo.</description>
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