Vulnerability in Microsoft Windows
CVE-2023-40596
In Splunk Enterprise versions earlier than 8.2.12, 9.0.6, and 9.1.1, a dynamic link library (DLL) that ships with Splunk Enterprise references an insecure path for the OPENSSLDIR build definition. An attacker can abuse this reference and subsequently install malicious code to achieve privilege escalation on the Windows machine.
Vulnerability class: Dirty Pipe (CVE-2022-0847)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Microsoft Windows
- Splunk — versions 9.1.0
- Splunk Enterprise — versions 8.2, 9.0, 9.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- advisory.splunk.com/advisories/SVD-2023-0805 (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-40596?
- CVE-2023-40596 is a high-severity vulnerability in Microsoft Windows, classified under Improper Initialization. CVSS score: 7.0/10. Published 2023-08-30.
- How severe is CVE-2023-40596?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2023-40596 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.