CVE-2025-20384

5.3 mediumEPSS 0.4%

Medium (5.3) in splunk. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE: CWE-117
Published: 2025-12-03
Modified: 2026-09-25
Record from: the NVD, synced 2026-10-19

Affected

splunk:splunk
splunk:splunk_cloud_platform

References

https://advisory.splunk.com/advisories/SVD-2025-1203

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