CVE-2025-20386: Splunk

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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 products

• Splunk Splunk: from 9.2.0, before 9.2.10 (fixed in 9.2.10); from 9.3.0, before 9.3.8 (fixed in 9.3.8); from 9.4.0, before 9.4.6 (fixed in 9.4.6); from 10.0.0, before 10.0.2 (fixed in 10.0.2)

Published 2025-12-03. Last modified 2026-06-17.