CVE-2023-40598
In Splunk Enterprise versions below 8.2.12, 9.0.6, and 9.1.1, an attacker can create an external lookup that calls a legacy internal function. The attacker can use this internal function to insert code into the Splunk platform installation directory. From there, a user can execute arbitrary code on the Splunk platform Instance.
Key facts
- CVSS score
- 8.5 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H- Weakness (CWE)
- CWE-77
- EPSS score
- 0.9% (57th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2023-45156)
- Published
- August 30, 2023
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2023-45156 in the EU Vulnerability Database. Last updated in EUVD on February 28, 2025.
View on the EU Vulnerability DatabaseAffected products
- splunk / splunk
- splunk / splunk cloud platform
Certified products that may be affected
3 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Splunk Enterprise 9.0.4 - Splunk, Inc. - Common Criteria CCEVS-VR-VID-11330-2023 - archived
- Splunk Enterprise 8.1 - Splunk, Inc. - Common Criteria CCEVS-VR-VID-11108-2021 - archived
- Splunk Enterprise 6.4.5 - Splunk, Inc. - Common Criteria CCEVS-VR-VID-10780 - archived
References
- https://advisory.splunk.com/advisories/SVD-2023-0807(Vendor Advisory)
- https://research.splunk.com/application/ee69374a-d27e-4136-adac-956a96ff60fd/(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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