Incorrect permission assignment allows local privilege escalation to SYSTEM on affected releases of the Illumio VEN for Windows. Code execution as NT AUTHORITY\LOCAL SERVICE on the Windows host is required to exploit this vulnerability. The flaw exists within the VEN installer, which grants LOCAL SERVICE full access to the VEN data and installation folders, whose configuration and state files are read and trusted by the SYSTEM-privileged illumio-ven-ctl component. An attacker can leverage this vulnerability to modify the VEN configuration so that illumio-ven-ctl executes an injected command in the context of the SYSTEM account.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Illumio Core Ven unaffected
Version Status Constraints
26.2.30 affected < 26.2.30-S1
26.2.12 affected < 26.2.12-S1
25.2.41 affected < 25.2.41-S1
25.2.40 affected < 25.2.40-S1
25.2.31 affected < 25.2.31-S1
25.2.20 affected < 25.2.20-S1
25.2.10 affected < 25.2.10-S1
24.2.40 affected < 24.2.40-S1
24.2.35 affected < 24.2.35-S1
24.2.30 affected < 24.2.30-S1
24.2.20 affected < 24.2.20-S1
24.2.11 affected < 24.2.11-S1
24.2.10 affected < 24.2.10-S1
23.2.31 affected < 23.2.31-S1
23.2.31-LA affected < 23.2.31-LA-S1
23.2.30 affected < 23.2.30-S1
23.2.24 affected < 23.2.24-S1
23.2.24-LA affected < 23.2.24-LA-S1
23.2.23 affected < 23.2.23-S1
23.2.22 affected < 23.2.22-S1
23.2.22-LA affected < 23.2.22-LA-S1

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://product-docs-repo.illumio.com/Tech-Docs/Security+Advisories/out/en/security-advisories/insecure-folder-permissions-in-the-windows-ven.html cve-icon
History

Mon, 09 Nov 2026 21:45:00 +0000

Type Values Removed Values Added
Description Incorrect permission assignment allows local privilege escalation to SYSTEM on affected releases of the Illumio VEN for Windows. Code execution as NT AUTHORITY\LOCAL SERVICE on the Windows host is required to exploit this vulnerability. The flaw exists within the VEN installer, which grants LOCAL SERVICE full access to the VEN data and installation folders, whose configuration and state files are read and trusted by the SYSTEM-privileged illumio-ven-ctl component. An attacker can leverage this vulnerability to modify the VEN configuration so that illumio-ven-ctl executes an injected command in the context of the SYSTEM account.
Title Local privilege escalation via insecure folder permissions
Weaknesses CWE-732
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Illumio

Published:

Updated: 2026-11-09T21:35:03.437Z

Reserved: 2026-10-20T21:11:53.061Z

Link: CVE-2026-114031

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses