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K
zdiAbdelhamid Naceri (halov)ZDI-21-286
HistoryMar 15, 2021 - 12:00 a.m.

Microsoft Windows Update Agent Directory Junction Denial-of-Service Vulnerability

2021-03-1500:00:00
Abdelhamid Naceri (halov)
www.zerodayinitiative.com
24

0.0004 Low

EPSS

Percentile

9.9%

This vulnerability allows local attackers to create a denial-of-service condition 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 Windows Update Agent. By creating a directory junction, an attacker can abuse Windows Update Agent to delete a directory. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

0.0004 Low

EPSS

Percentile

9.9%