CVE-2025-20388 | Blind Server Side Request Forgery (SSRF) through Distributed Search Peers in Splunk Enterprise

In Splunk Enterprise versions below 10.0.1, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.4, 10.0.2503.7, and 9.3.2411.116, a user who holds a role that contains the high privilege capability `change_authentication` could enumerate internal IP addresses and network ports when adding new search peers to a Splunk search head in a distributed environment.

Published: 2025-12-03 Last update: 2025-12-05 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-20388 is rated Low Risk (14/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.03%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

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-2025-20388

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 2026-05-01 0.05% 0.03% -0.02%
2 2026-04-04 0.03% 0.05% +0.02%
3 2025-12-04 — 0.03% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-20388

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.7 3.1 LOW
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/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:H)
They need powerful rights—admin, root, or similar—before this pays off.
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:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.2 1.4 [email protected]

Weakness enumeration for CVE-2025-20388

Affected software / configurations for CVE-2025-20388

Vendor Product Version Raw CPE
splunk splunk >= 9.2.0, < 9.2.10 cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
splunk splunk >= 9.3.0, < 9.3.8 cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
splunk splunk >= 9.4.0, < 9.4.6 cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
splunk splunk 10.0.0 cpe:2.3:a:splunk:splunk:10.0.0:*:*:*:enterprise:*:*:*
splunk splunk_cloud_platform >= 9.3.2411, < 9.3.2411.116 cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
splunk splunk_cloud_platform >= 10.0.2503, < 10.0.2503.6 cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
splunk splunk_cloud_platform >= 10.1.2507, < 10.1.2507.4 cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*

References for CVE-2025-20388

cvelogic Threat Intelligence