Vulnerability Description
In Splunk Enterprise for Windows versions below 10.4.2, 10.2.6, 10.0.9, 9.4.13, and 9.3.14, a local user with access to the Windows host could bind to the management port before Splunk Enterprise starts, intercept authentication tokens from child processes, and use those tokens to compromise all relevant data and system integrity available to the user account running Splunk Enterprise. The vulnerability is possible because the Windows management-port listener does not apply exclusive address binding protections before the service starts.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk | >= 9.3.0, < 9.3.14 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://advisory.splunk.com/advisories/SVD-2026-0801Vendor Advisory
FAQ
What is CVE-2026-76259?
CVE-2026-76259 is a vulnerability with a CVSS score of 8.8 (HIGH). In Splunk Enterprise for Windows versions below 10.4.2, 10.2.6, 10.0.9, 9.4.13, and 9.3.14, a local user with access to the Windows host could bind to the management port before Splunk Enterprise star...
How severe is CVE-2026-76259?
CVE-2026-76259 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-76259?
Check the references section above for vendor advisories and patch information. Affected products include: Splunk Splunk, Microsoft Windows.