CVE-2025-20324 | Improper Access Control in System Source Types Configuration in Splunk Enterprise

In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.7, and 9.1.10 and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles could create or overwrite [system source type](https://help.splunk.com/en/splunk-enterprise/get-started/get-data-in/9.2/configure-source-types/create-source-types) configurations by sending a specially-crafted payload to the `/servicesNS/nobody/search/admin/sourcetypes/` REST endpoint on the Splunk management port.

Published: 2025-07-07 Last update: 2025-07-21 Assigner: [email protected] Source: [email protected]

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Conclusion & alert: CVE-2025-20324 is rated Low Risk (34.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.17%). 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.

Exploit prediction scoring system (EPSS) score for CVE-2025-20324

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	2026-05-03	0.05%	0.17%	+0.11%
2	2026-03-23	0.03%	0.05%	+0.03%
3	2025-07-08	—	0.03%	—

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-20324

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.4	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.	2.8	2.5	[email protected]

Weakness enumeration for CVE-2025-20324

CWE-284 MITRE ↗

Affected software / configurations for CVE-2025-20324

Vendor	Product	Version	Raw CPE
splunk	splunk	>= 9.1.0, < 9.1.10	cpe:2.3:a:splunk:splunk:::::enterprise:::*
splunk	splunk	>= 9.2.0, < 9.2.7	cpe:2.3:a:splunk:splunk:::::enterprise:::*
splunk	splunk	>= 9.3.0, < 9.3.5	cpe:2.3:a:splunk:splunk:::::enterprise:::*
splunk	splunk	>= 9.4.0, < 9.4.2	cpe:2.3:a:splunk:splunk:::::enterprise:::*
splunk	splunk_cloud_platform	>= 9.2.2406, < 9.2.2406.119	cpe:2.3:a:splunk:splunk_cloud_platform::::::::
splunk	splunk_cloud_platform	>= 9.3.2408, < 9.3.2408.113	cpe:2.3:a:splunk:splunk_cloud_platform::::::::
splunk	splunk_cloud_platform	>= 9.3.2411, < 9.3.2411.104	cpe:2.3:a:splunk:splunk_cloud_platform::::::::

References for CVE-2025-20324

URL	Tags
https://advisory.splunk.com/advisories/SVD-2025-0707	Vendor Advisory

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