CVE-2025-20228 | Maintenance mode state change of App Key Value Store (KVStore) through a Cross-Site Request Forgery (CSRF) in Splunk Enterprise

In Splunk Enterprise versions below 9.3.3, 9.2.5, and 9.1.8 and Splunk Cloud Platform versions below 9.2.2403.108, and 9.1.2312.204, a low-privileged user that does not hold the "admin" or "power" Splunk roles could change the maintenance mode state of App Key Value Store (KVStore) through a Cross-Site Request Forgery (CSRF).

Published: 2025-03-26 Last update: 2025-07-21 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-20228 is rated Moderate Risk (44.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.30%). Review affected assets and schedule remediation.

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-2025-20228

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 2026-05-09 0.16% 0.30% +0.14%
2 2026-05-04 0.08% 0.16% +0.08%
3 2026-01-20 — 0.08% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-20228

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]

Weakness enumeration for CVE-2025-20228

Affected software / configurations for CVE-2025-20228

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_cloud_platform >= 9.1.2312, < 9.1.2312.204 cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
splunk splunk_cloud_platform >= 9.2.2403.100, < 9.2.2403.107 cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*

References for CVE-2025-20228

cvelogic Threat Intelligence