CVE-2025-66678

PoC —

CVSS 3.1

9.8 critical

EPSS

<1%p49

Published

Mar 4, 2026 (Mar 4, 2026)

Modified

Jun 17, 2026

Description

An issue in the HwRwDrv.sys component of Nil Hardware Editor Hardware Read & Write Utility v1.25.11.26 and earlier allows attackers to execute arbitrary read and write operations via a crafted request.

Vendors: faintsnow
Products: hardware read \& write utility
Weakness: CWE-89
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

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