Auth bypass in Splunk
CVE-2025-20300
In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.6, and 9.1.9 and Splunk Cloud Platform versions below 9.3.2411.103, 9.3.2408.112, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles, and has read-only access to a specific alert, could suppress that alert when it triggers. See [Define alert suppression groups to throttle sets of similar alerts](https://help.splunk.com/en/splunk-enterprise/alert-and-respond/alerting-manual/9.4/manage-alert-trigger-conditions-and-throttling/define-alert-suppression-groups-to-throttle-sets-of-similar-alerts).
Vulnerability class: Broken Access Control
Published · last modified .
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:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Splunk
- Splunk Cloud Platform — versions 9.3.2411, 9.3.2408, 9.2.2406
- Splunk Cloud Platform
- Splunk Enterprise — versions 9.4, 9.3, 9.2
Weakness classification (CWE)
References
- advisory.splunk.com/advisories/SVD-2025-0708 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-20300?
- CVE-2025-20300 is a medium-severity vulnerability in Splunk, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2025-07-07.
- How severe is CVE-2025-20300?
- Medium severity. CVSS v3 base score is 4.3 out of 10.