CVE-2023-40595 json
Remote Code Execution via Serialized Session Payload
published 2023-08-30 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-45153
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Splunk Splunk Enterprise 8.2.12, 9.0.6, 9.1.1
- Splunk Splunk Cloud 9.0.2305.200
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Splunk Splunk Enterprise
- Splunk Splunk Cloud
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
advisory.splunk.com
/advisories/SVD-2023-0804
vendor-advisory
-
research.splunk.com
/application/d1d8fda6-874a-400f-82cf-dcbb59d8e4db/
vendor-advisory
Sources
- CVE List CVE-2023-40595
- NVD CVE-2023-40595
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