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CVE-2023-40595

HIGH · CVSS 8.8EPSS 0.9%EU EUVD

In Splunk Enterprise versions lower than 8.2.12, 9.0.6, and 9.1.1, an attacker can execute a specially crafted query that they can then use to serialize untrusted data. The attacker can use the query to execute arbitrary code.

Key facts

CVSS score
8.8 (v3.1)
Severity
HIGH
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-502
EPSS score
0.9% (59th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2023-45153)
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-2023-45153 in the EU Vulnerability Database. Last updated in EUVD on February 28, 2025.

View on the EU Vulnerability Database

Affected products

  • splunk / splunk
  • splunk / splunk
  • splunk / splunk cloud platform

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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CVE-2023-40595: HIGH severity (CVSS 8.8)