Description
Hw64.sys in Marvin Test HW.exe before 5.0.5.0 allows unprivileged user-mode processes to arbitrarily read kernel memory (and consequently gain all privileges) via IOCTL 0x9c4064b8 (via MmMapIoSpace) and IOCTL 0x9c406490 (via ZwMapViewOfSection).
References (2)
Core 2
Core References
Various Sources
https://www.marvintest.com/KnowledgeBase/KBArticle.aspx?ID=362
Scores
CVSS v3
7.4
EPSS
0.0006
EPSS Percentile
19.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-125
Status
published
Published
May 26, 2024
Tracked Since
Feb 18, 2026