CVE-2026-58613: Use-After-Free in the Windows Cloud Files Mini Filter Driver (cldflt.sys)

Original text: “Microsoft Windows Cloud Files Mini Filter Driver CldiStreamCompleteRequest use-after-free vulnerability” — Marcin ‘Icewall’ Noga, Cisco Talos (July 17, 2026). Register dumps, decompiled listings and crash logs below are reproduced verbatim with attribution.

Executive Summary

Cisco Talos researcher Marcin ‘Icewall’ Noga disclosed CVE-2026-58613, a kernel-mode use-after-free in cldflt.sys — the Windows Cloud Files Mini…

https://core-jmp.org/2026/07/cve-2026-58613-cldflt-cloud-files-use-after-free/