Resource exhaustion in Splunk
CVE-2023-40594
In Splunk Enterprise versions lower than 8.2.12, 9.0.6, and 9.1.1, an attacker can use the `printf` SPL function to perform a denial of service (DoS) against the Splunk Enterprise instance.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Splunk — versions 9.1.0
- Splunk Cloud
- Splunk Cloud Platform
- Splunk Enterprise — versions 8.2, 9.0, 9.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- advisory.splunk.com/advisories/SVD-2023-0803 (Vendor Advisory)
- research.splunk.com/application/78b48d08-075c-4eac-bd07-e364c3780867/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-40594?
- CVE-2023-40594 is a medium-severity vulnerability in Splunk, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-08-30.
- How severe is CVE-2023-40594?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-40594 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.