In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 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 edit and delete other user data in App Key Value Store (KVStore) collections that the Splunk Secure Gateway app created. This is due to missing access control and incorrect ownership of the data in those KVStore collections.<br><br>In the affected versions, the `nobody` user owned the data in the KVStore collections. This meant that there was no specific owner assigned to the data in those collections.
Conclusion & alert: CVE-2025-20230 is rated Low Risk (22.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-29 | 0.05% | 0.05% | +0.00% |
| 2 | 2025-11-21 | 0.06% | 0.05% | -0.02% |
| 3 | 2025-11-18 | — | 0.06% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| splunk | splunk | >= 9.1.0, < 9.1.8 | cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* |
| splunk | splunk | >= 9.2.0, < 9.2.5 | cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* |
| splunk | splunk | >= 9.3.0, < 9.3.3 | cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* |
| splunk | splunk | >= 9.4.0, < 9.4.1 | cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* |
| splunk | splunk_secure_gateway | >= 3.7.0, < 3.7.23 | cpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:* |
| splunk | splunk_secure_gateway | >= 3.8.0, < 3.8.38 | cpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://advisory.splunk.com/advisories/SVD-2025-0307 | Vendor Advisory |