Medium severity · published Dec 3, 2025
CVE-2025-20384
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…
5.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
Splunk · Splunk
9.2.0 before 9.2.10; 9.3.0 before 9.3.8; 9.4.0 before 9.4.6; 10.0.0 · source: NVD
SC
Splunk Cloud Platform · Splunk
9.3.2411 before 9.3.2411.117; 10.0.2503 before 10.0.2503.6; 10.1.2507 before 10.1.2507.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-20384
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-20384
Vendor Advisory
https://advisory.splunk.com/advisories/SVD-2025-1203
More from Splunk
9.8
CVE-2026-20253
Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise
7.5
CVE-2014-0160
OpenSSL Information Disclosure Vulnerability
10.0
CVE-2022-32158
Splunk Enterprise deployment servers in versions before 8.1.10.1, 8.2.6.1, and 9.0 let clients deploy forwarder bundles to other deployment clients through the deployment server
9.8
CVE-2026-76285
Improper Adherence to Coding Standards in Splunk Enterprise
9.8
CVE-2026-76284
Improper Neutralization in Splunk Enterprise