CVE-2025-20386: Incorrect permission assignment on Splunk Enterprise for Windows during new installation or upgrade

Published Dec 3, 2025
·
Updated

In Splunk Enterprise for Windows versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, a new installation of or an upgrade to an affected version can result in incorrect permissions assignment in the Splunk Enterprise for Windows Installation directory. This lets non-administrator users on the machine access the directory and all its contents.

Affected Software

6 affected components
Splunk Enterprise for Windows<10.0.2, <9.4.6, <9.3.8, <9.2.10
All of the following
Any of the following
Splunk splunk>=9.2.0<9.2.10
Splunk splunk>=9.3.0<9.3.8
Splunk splunk>=9.4.0<9.4.6
Splunk splunk>=10.0.0<10.0.2
Microsoft Windows

Event History

Dec 3, 2025
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-20386?

CVE-2025-20386 is rated as a high severity vulnerability.

2

How do I fix CVE-2025-20386?

To fix CVE-2025-20386, upgrade to Splunk Enterprise for Windows version 10.0.2, 9.4.6, 9.3.8, or 9.2.10.

3

What types of users are affected by CVE-2025-20386?

Non-administrator users on Windows machines are affected by CVE-2025-20386 due to incorrect permission assignments.

4

What versions of Splunk Enterprise for Windows are vulnerable to CVE-2025-20386?

Versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10 of Splunk Enterprise for Windows are vulnerable to CVE-2025-20386.

5

What is the exploitability level of CVE-2025-20386?

CVE-2025-20386 is considered easily exploitable due to the improper permission assignments in the installation directory.

Company

Resources

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