CVE-2023-40593
MEDIUM · CVSS 6.3EPSS 0.6%EU EUVD
In Splunk Enterprise versions lower than 9.0.6 and 8.2.12, a malicious actor can send a malformed security assertion markup language (SAML) request to the `/saml/acs` REST endpoint which can cause a denial of service through a crash or hang of the Splunk daemon.
Key facts
- CVSS score
- 6.3 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H- Weakness (CWE)
- CWE-400
- EPSS score
- 0.6% (47th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2023-45151)
- 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-2023-45151 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
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Splunk Enterprise 9.0.4 - Splunk, Inc. - Common Criteria CCEVS-VR-VID-11330-2023 - archived
References
- https://advisory.splunk.com/advisories/SVD-2023-0802(Vendor Advisory)
- https://research.splunk.com/application/8e8a86d5-f323-4567-95be-8e817e2baee6/(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain