Microsoft

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

CVE-2026-85880 Sep 8, 2026 Source: Vendor

Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85880

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Credited

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CVE-2026-85880 Known exploited (CISA KEV) BR2026-0003-018278 unclaimed

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

Credited as Mark Kelly, David Galazin and Jeremy Hedges with Proofpoint Inc.

CVE-2026-85880 Known exploited (CISA KEV) BR2026-0003-018280 unclaimed

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

Credited as Volexity with https://www.volexity.com/