CVE-2025-20389
Improper Input Validation in "label" column field in Splunk Secure Gateway App
Severity
Medium 4.3
CVSS 3.1
Exploited
Not listed
EPSS
0.004
35.5th percentile
Discovered by
Not disclosed
Published
Dec 3, 2025
Assigned by cisco
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).
Weakness: CWE-20
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Splunk Cloud Platform | SIEM & Log Management | cna-assigner |
| Cisco | Splunk Enterprise | SIEM & Log Management | cna-assigner |
| Cisco | Splunk Secure Gateway | SIEM & Log Management | cna-assigner |
Vendor-reported products (3)
- Splunk · Splunk Enterprise
- Splunk · Splunk Cloud Platform
- Splunk · Splunk Secure Gateway