CVE-2023-40595: splunk Deserialization of Untrusted Data
CVSS: 8.8v3.1HighModified
Published 30-08-2023Last modified 28-02-2025
Vulnerability summary
CVE-2023-40595 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in splunk. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 59% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.90%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 30-08-2023PublishedVulnerability first disclosed.
- 28-02-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.90%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.90% on 19-09-2026
19-09-202619-10-2026
EPSS score0.90%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Splunk4 products
- splunkEOL≥ 8.2.0, < 8.2.12 | ≥ 9.0.0, < 9.0.6 | 9.1.0
- splunk cloud≥ -, < 9.0.2305.200
- splunk_cloud_platform≤ 9.0.2305.100
- splunk enterprise≥ 8.2, < 8.2.12 | ≥ 9.0, < 9.0.6 | ≥ 9.1, < 9.1.1
1 vendor · 4 products
References
2 links- advisory.splunk.com/advisories/SVD-2023-0804Vendor Advisory