Is CVE-2025-20384 in the CISA KEV catalog?

No. CVE-2025-20384 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-20384?

CVE-2025-20384 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-20384?

CVE-2025-20384 has an EPSS score of 0.35% (28th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-20384?

Upgrade splunk to 9.4.6 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2025-20384

MEDIUM

5.3

CVSS v3

NVD

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.

CWE-117

How to fix

Remediation Available

splunkNVD

Affected:>= 9.4.0, < 9.4.6Fixed in:9.4.6CVE-2025-20384derived from NVD

splunk cloud platformNVD

Affected:>= 10.1.2507, < 10.1.2507.4Fixed in:10.1.2507.4CVE-2025-20384derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.35%probability of exploitation in 30 days

28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Vendor Advisory1

advisory.splunk.com

Related Vulnerabilities

Other CWE-117 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-43410	Medium	5.3	2.4%	-	Fix
CVE-2022-32549	Medium	5.3	2.3%	-	-
CVE-2019-14864	Medium	6.5	1.9%	-	Fix
CVE-2021-42250	Medium	6.5	1.8%	-	Fix
CVE-2024-47083	High	7.5	1.6%	-	-
CVE-2020-25646	High	7.5	1.4%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-05.