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6.5

Splunk Enterprise for Windows: Non-admins can access sensitive files during install or upgrade

CVE-2025-20386 · published 11 months ago
Summary

If you're running an outdated version of Splunk Enterprise on Windows, installing or upgrading it may give non-admin users access to sensitive files. This could lead to unauthorized changes or data breaches. Update to the latest version to fix this problem.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
splunk splunk >= 9.2.0, < 9.2.10
>= 9.3.0, < 9.3.8
>= 9.4.0, < 9.4.6
>= 10.0.0, < 10.0.2
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
Original advisory text
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 Sp...
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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
6.5 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-732Incorrect Permission Assignment for Critical Resource
Timeline
Published3 Dec 2025
Updated3 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-20386 · NVD
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