CVE-2026-76259 json
Improper Privilege Management on the Management Port in Splunk Enterprise for Windows
published 2026-08-19 2 mo ago modified 2026-10-24 15 d ago also EUVD-2026-63111
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 5%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Splunk Splunk Enterprise 9.3.14, 9.4.13, 10.0.9, 10.2.6, 10.4.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 5% 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:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Splunk Splunk Enterprise
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
advisory.splunk.com
/advisories/SVD-2026-0801
vendor-advisory
Sources
- CVE List CVE-2026-76259
- NVD CVE-2026-76259
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