Client-Side Denial of Service Vulnerability in Splunk Enterprise and Splunk Secure Gateway
CVE-2025-20389

4.3MEDIUM

Key Information:

Vendor

Splunk
Status
Splunk Enterprise
Splunk Cloud Platform
Splunk Secure Gateway
Vendor
CVE Published:
3 December 2025

What is CVE-2025-20389?

In specific versions of Splunk Enterprise and the Splunk Secure Gateway app, low-privileged users can craft malicious payloads utilizing the 'label' column when adding new devices. This vulnerability poses a risk of client-side denial of service (DoS), potentially disrupting user access and functionality.

Affected Version(s)

Splunk Cloud Platform 10.1.2507 < 10.1.2507.6

Splunk Cloud Platform 10.0.2503 < 10.0.2503.8

Splunk Cloud Platform 9.3.2411 < 9.3.2411.120

References

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

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.