CVE-2025-20389

Name: CVE-2025-20389
Creator: NVD / NIST
Published: 2025-12-03T17:15:51.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2025-20389 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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).. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.36%

27.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Splunk	Splunk	>= 9.2.0, < 9.2.10
Splunk	Splunk	>= 9.3.0, < 9.3.8
Splunk	Splunk	>= 9.4.0, < 9.4.6
Splunk	Splunk	>= 10.0.0, < 10.0.2
Splunk	Splunk Cloud Platform	>= 9.3.2411, < 9.3.2411.120
Splunk	Splunk Cloud Platform	>= 10.0.2503, < 10.0.2503.8
Splunk	Splunk Cloud Platform	>= 10.1.2507, < 10.1.2507.6
Splunk	Splunk Secure Gateway	>= 3.7.0, < 3.7.28
Splunk	Splunk Secure Gateway	>= 3.8.0, < 3.8.58
Splunk	Splunk Secure Gateway	>= 3.9.0, < 3.9.10

References

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

Timeline

Published: Dec 3, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-20389?

How severe is CVE-2025-20389?

CVE-2025-20389 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2025-20389?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-20389?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST