Vulnerability · 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 at
Published Dec 3, 2025 · catalog updated Dec 3, 2025 · Splunk Splunk Cloud Platform
Last checked Nov 3, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-20384. EPSS is 0.41%. Act only if a listed version of Splunk Splunk Cloud Platform is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-20378 · Medium
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- CVE-2025-20371 · High
- CVE-2025-20367 · Medium
- CVE-2025-20369 · Medium
- Severity
- Medium5.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.41%
- Remediation
- Version ranges on file
- Affected products
- vendor Splunk Splunk Cloud Platform 10.1.2507 <10.1.2507.4
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Splunk Splunk Cloud Platform 10.1.2507 <10.1.2507.410.1.2507 <10.1.2507.4
How to fix CVE-2025-20384
Upgrade
CVE-2025-20384 lists a fix boundary at 10.1.2507.4. Compare the installed build with that boundary before you change production.
Version check
Seen in 10.1.2507 <10.1.2507.4
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-20384. EPSS is 0.41%. Act only if a listed version of Splunk Splunk Cloud Platform is installed.
Which versions are affected?
Compare what you have installed with Splunk Splunk Cloud Platform 10.1.2507 <10.1.2507.4 10.1.2507 <10.1.2507.4. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.41%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Dec 3, 2025 · EUVD
Detected
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 sensitiv
Dec 3, 2025 · EUVD
Updated
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 sensitiv
Sources
- CVE.orgVulnerability recordCVE-2025-20384
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-20384
30-day exploitation probability 0.41%
first.org - EUVDVulnerability recordEUVD-2025-201004
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 du
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 3, 2026
- CVE.orgOct 28, 2026
- EUVDOct 27, 2026