CVE-2026-76259

HIGH CVSS 3.1: 7.8 EPSS 0.12%
Updated Aug 21, 2026
Microsoft
Parameter Value
CVSS 7.8 (HIGH)
Affected Versions 10.0.0 — 9.4.13
Fixed In 9.3.14
Type CWE-269 (Improper Privilege Management)
Vendor Microsoft
Public PoC No

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.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 6

Configuration From (including) Up to (excluding)
Splunk Splunk
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
9.3.0 9.3.14
Splunk Splunk
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
9.4.0 9.4.13
Splunk Splunk
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
10.0.0 10.0.9
Splunk Splunk
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
10.2.0 10.2.6
Splunk Splunk
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
10.4.0 10.4.2
Microsoft Windows
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*