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zdiMarcin WiazowskiZDI-21-1018
HistoryAug 26, 2021 - 12:00 a.m.

Microsoft Windows Canonical Display Driver DrvStrokePath NULL Pointer Dereference Privilege Escalation Vulnerability

2021-08-2600:00:00
Marcin Wiazowski
www.zerodayinitiative.com
24
microsoft windows
cdd
null pointer
privilege escalation
arbitrary code

EPSS

0.001

Percentile

32.3%

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the cdd.dll driver. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.