CVE-2026-85880

Qué es

Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.

CISA: Microsoft Windows Advanced Local Procedure Call contains a heap-based buffer overflow vulnerability that allows an attacker to elevate privileges locally.

Qué hacer

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.

Plazo para las agencias federales de EE. UU.: 22 de septiembre de 2026

• msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85880