What’s Vulnerable › Vulnerabilities
CVE-2025-20387: Incorrect permissions assignment on Splunk Universal Forwarder for Windows during new installation or upgrade
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-12-03 · updated 2026-06-17
- Weakness: CWE-732
Description
In Splunk Universal Forwarder 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 Universal Forwarder for Windows Installation directory. This lets non-administrator users on the machine access the directory and all its contents.
Affected products
- Splunk Enterprise: from 9.2.0 before 9.2.10; from 9.3.0 before 9.3.8; from 9.4.0 before 9.4.6; from 10.0.0 before 10.0.2 — fixed in 10.0.2, 9.2.10, 9.3.8, 9.4.6
How to fix
Upgrade to a fixed version: Splunk Enterprise 10.0.2, 9.2.10, 9.3.8, 9.4.6. Check the vendor advisory for mitigations.
References
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