CVE-2025-20389

Improper Input Validation in "label" column field in Splunk Secure Gateway App

State: Published
Severity: 4.3 Medium
Published: Dec 3, 2025
Updated: Dec 3, 2025
Reserved: Oct 10, 2024

Description

In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and versions below 3.9.10, 3.8.58 and 3.7.28 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious payload through the `label` column field after adding a new device in the Splunk Secure Gateway app. This could potentially lead to a client-side denial of service (DoS).

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	cisco

Weaknesses

CWE-20 The product does not validate or incorrectly validates input that can affect the control flow or data flow of a program.

Affected Products

Product	Versions
Splunk EnterpriseSplunk	10.0 to before 10.0.2Affected 9.4 to before 9.4.6Affected 9.3 to before 9.3.8Affected 9.2 to before 9.2.10Affected
Splunk Cloud PlatformSplunk	10.1.2507 to before 10.1.2507.6Affected 10.0.2503 to before 10.0.2503.8Affected 9.3.2411 to before 9.3.2411.120Affected
Splunk Secure GatewaySplunk	3.9 to before 3.9.10Affected 3.8 to before 3.8.58Affected 3.7 to before 3.7.28Affected

References

https://advisory.splunk.com/advisories/SVD-2025-1208

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