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K
zdiPiotr Bazydlo (@chudypb) of Trend Micro Zero Day InitiativeZDI-22-1629
HistoryNov 22, 2022 - 12:00 a.m.

Microsoft Exchange GsmWriter Exposed Dangerous Function Denial-of-Service Vulnerability

2022-11-2200:00:00
Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
www.zerodayinitiative.com
8
microsoft
exchange
gsmwriter
dangerous function
denial-of-service
vulnerability
remote attackers
authentication
flaw
exposure
system

0.216 Low

EPSS

Percentile

96.5%

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability. The specific flaw exists within the GsmWriter class. The issue results from the exposure of a dangerous function. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.