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CVE-2025-20384

Unauthenticated Log Injection in Splunk Enterprise

Published: Dec 3, 2025Updated: Dec 5, 2025 Sources: CVE List NVD BDUCWE-117
5.3MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 74.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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, 10.0.2503.6, and 9.3.2411.117.125, an unauthenticated attacker can inject American National Standards Institute (ANSI) escape codes into Splunk log files due to improper validation at the /en-US/static/ web endpoint. This may allow them to poison, forge, or obfuscate sensitive log data through specially crafted HTTP requests, potentially impacting log integrity and detection capabilities.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-117

Affected Products

Splunk
commercial·USaka splunk enterprise, splunk cloud platform
splunk
Security Products
Splunk Cloud Platform
Security Products
Splunk Enterprise
Security Products
Splunk Inc.
commercial·USaka splunk
Splunk Enterprise
Security Products
Splunk Cloud Platform
Security Products
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2025-20384?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://advisory.splunk.com/advisories/SVD-2025-1203
advisory.splunk.com
https://advisory.splunk.com/advisories/SVD-2025-1203
advisory.splunk.com
https://www.cybersecurity-help.cz/vdb/SB2025120404
cybersecurity-help.cz

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