CVE-2025-20386

High

Description

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.

SeverityHigh
CVSS8.0
Exploit probability—
ProductSplunk
PublishedDec 3, 2025
First seenDec 3, 2025
Weakness typeCWE-732CWE-732

How to fix

Update
  • splunk splunk9.2.10, 9.3.8, 9.4.6, 10.0.2 or later

Affected products

ProductAffected versionsFixed in
splunk splunk9.2.0 ≤ v < 9.2.10, 9.3.0 ≤ v < 9.3.8, 9.4.0 ≤ v < 9.4.6, 10.0.0 ≤ v < 10.0.29.2.10, 9.3.8, 9.4.6, 10.0.2

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.