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Vulnerability record · CVE-2023-40598 · published 30 August 2023

CVE-2023-40598: Splunk command injection vulnerability

Splunk · Splunk

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.

8.8 CVSS 3.1 High EPSS 0.85% · top 43.6% CWE-77 · Command injectionCWE-306 · Missing authentication for critical function
8.8CVSS 3.1 base score
0.85%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://advisory.splunk.com/advisories/SVD-2023-0807 Vendor Advisory
https://research.splunk.com/application/ee69374a-d27e-4136-adac-956a96ff60fd/ Vendor Advisory
https://advisory.splunk.com/advisories/SVD-2023-0807 Vendor Advisory
https://research.splunk.com/application/ee69374a-d27e-4136-adac-956a96ff60fd/ Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-40598), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.