What is CVE-2025-20370?

CVE-2025-20370 is a medium-severity vulnerability in Splunk, classified under Uncontrolled Resource Consumption. CVSS score: 4.9/10. Published 2025-10-01.

How severe is CVE-2025-20370?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Resource exhaustion in Splunk

CVE-2025-20370

In Splunk Enterprise versions below 10.0.1, 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.108, 9.3.2408.118 and 9.2.2406.123, a user who holds a role that contains the high-privilege capability `change_authenti…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (40.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Splunk — versions 10.0.0
Splunk Splunk_cloud_platform
Splunk Enterprise — versions 10.0, 9.4, 9.3
Splunk Enterprise Cloud — versions 9.3.2411, 9.3.2408, 9.2.2406

Weakness classification (CWE)

References

psirt@cisco.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20370?: CVE-2025-20370 is a medium-severity vulnerability in Splunk, classified under Uncontrolled Resource Consumption. CVSS score: 4.9/10. Published 2025-10-01.
How severe is CVE-2025-20370?: Medium severity. CVSS v3 base score is 4.9 out of 10.