What is CVE-2025-20389?

CVE-2025-20389 is a medium-severity vulnerability in Splunk Cloud Platform, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2025-12-03.

How severe is CVE-2025-20389?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Splunk Cloud Platform

CVE-2025-20389

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" S…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (30.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Splunk Cloud Platform — versions 10.1.2507, 10.0.2503, 9.3.2411
Splunk Enterprise — versions 10.0, 9.4, 9.3
Splunk Secure Gateway — versions 3.9, 3.8, 3.7

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2025-20389?: CVE-2025-20389 is a medium-severity vulnerability in Splunk Cloud Platform, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2025-12-03.
How severe is CVE-2025-20389?: Medium severity. CVSS v3 base score is 4.3 out of 10.