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CVE-2025-20389

Improper Input Validation in "label" column field in Splunk Secure Gateway App

Published: Dec 3, 2025Updated: Dec 5, 2025 Sources: CVE List NVD BDUCWE-20
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.4%
Top 72.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and versions below 3.9.10, 3.8.58 and 3.7.28 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious payload through the `label` column field after adding a new device in the Splunk Secure Gateway app. This could potentially lead to a client-side denial of service (DoS).

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

Splunk EnterpriseSplunkSecurity Products
Splunk Cloud PlatformSplunkSecurity Products
Splunk Secure GatewaySplunkSecurity Products
splunksplunkSecurity Products
splunk cloud platformsplunkSecurity Products
splunkcommercialUSSecurity Productsaka splunk enterprise, splunk cloud platform
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://advisory.splunk.com/advisories/SVD-2025-1208
advisory.splunk.com
https://advisory.splunk.com/advisories/SVD-2025-1208
advisory.splunk.com
https://www.cybersecurity-help.cz/vdb/SB2025120435
cybersecurity-help.cz

Timeline

Published
Dec 3, 2025
Last Updated
Dec 5, 2025

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