CVE-2026-85880Privilege Escalation in Windows ALPC
Microsoft Windows Advanced Local Procedure Call contains a heap-based buffer overflow vulnerability that allows an attacker to elevate privileges locally.
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Esta vulnerabilidad de desbordamiento de búfer en el componente ALPC de Windows permite a un atacante con acceso local elevar sus privilegios hasta el nivel de sistema. Se ha confirmado que está siendo explotada activamente en ataques reales para tomar control total de servidores y estaciones de trabajo. Es fundamental aplicar los parches de seguridad de Microsoft en entornos de desarrollo y producción basados en Windows.
Relevant roles
Severity
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCWE-122CWE-908CISA KEV
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
EPSS
No EPSS score yet (CVE may be too fresh).
Affects
microsoft:windows_10_1607microsoft:windows_10_1809microsoft:windows_10_21h2microsoft:windows_10_22h2microsoft:windows_server_2012microsoft:windows_server_2016microsoft:windows_server_2019microsoft:windows_server_2022Technical description
Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.