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V-278106

CAT II (Medium)

Windows Server 2025 Security event log size must be configured to 196608 KB or greater.

Rule ID

SV-278106r1181814_rule

STIG

Microsoft Windows Server 2025 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-001849

Discussion

Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.

Check Content

If the system is configured to write events directly to an audit server, this is not applicable.

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Policies\Microsoft\Windows\EventLog\Security\

Value Name: MaxSize

Type: REG_DWORD
Value: 0x00030000 (196608) (or greater)

Fix Text

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> Security >> Specify the maximum log file size (KB) to "Enabled" with a "Maximum Log Size (KB)" of "196608" or greater.