Deserialization in Splunk
CVE-2023-40595
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · 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-2023-0804 (Vendor Advisory)
- research.splunk.com/application/d1d8fda6-874a-400f-82cf-dcbb59d8e4db/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-40595?
- CVE-2023-40595 is a high-severity vulnerability in Splunk, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2023-08-30.
- How severe is CVE-2023-40595?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-40595 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.