CVE-2025-20386

Incorrect permission assignment on Splunk Enterprise for Windows during new installation or upgrade

MEDIUM

6.5

CVSS Score

Published: December 3, 2025 at 05:00 PM UTC

Updated: June 17, 2026 at 08:41 AM UTC

1 product affected across 1 vendorSplunk

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Splunk · Splunk

95%

10.0 ≤ v < 10.0.210.0.0 ≤ v < 10.0.29.2 ≤ v < 9.2.109.2.0 ≤ v < 9.2.109.3 ≤ v < 9.3.89.3.0 ≤ v < 9.3.89.4 ≤ v < 9.4.69.4.0 ≤ v < 9.4.610.0 9.2 9.3 9.4

Affected range stops below 10.0.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.2.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.3.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.4.6, so it looks safe — our inference, not a vendor statement

microsoft-windows (environment)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://advisory.splunk.com/advisories/SVD-2025-1205

References (1)

Vendor Advisory

Source: cverecord

https://advisory.splunk.com/advisories/SVD-2025-1205

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-732

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