CVE-2026-114031

Local privilege escalation via insecure folder permissions

Published Nov 9, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

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.

Affected Products

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
`26.2.12`	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.

Vendor Product Versions

Illumio

Core Ven

Version	Status	Scheme	Platform
`[26.2.30,26.2.30-S1)`	affected	semver	['windows']
`[26.2.12,26.2.12-S1)`	affected	semver	['windows']
`[25.2.41,25.2.41-S1)`	affected	semver	['windows']
`[25.2.40,25.2.40-S1)`	affected	semver	['windows']
`[25.2.31,25.2.31-S1)`	affected	semver	['windows']
`[25.2.20,25.2.20-S1)`	affected	semver	['windows']
`[25.2.10,25.2.10-S1)`	affected	semver	['windows']
`[24.2.40,24.2.40-S1)`	affected	semver	['windows']
`[24.2.35,24.2.35-S1)`	affected	semver	['windows']
`[24.2.30,24.2.30-S1)`	affected	semver	['windows']
`[24.2.20,24.2.20-S1)`	affected	semver	['windows']
`[24.2.11,24.2.11-S1)`	affected	semver	['windows']
`[24.2.10,24.2.10-S1)`	affected	semver	['windows']
`[23.2.31,23.2.31-S1)`	affected	semver	['windows']
`[23.2.31-LA,23.2.31-LA-S1)`	affected	semver	['windows']
`[23.2.30,23.2.30-S1)`	affected	semver	['windows']
`[23.2.24,23.2.24-S1)`	affected	semver	['windows']
`[23.2.24-LA,23.2.24-LA-S1)`	affected	semver	['windows']
`[23.2.23,23.2.23-S1)`	affected	semver	['windows']
`[23.2.22,23.2.22-S1)`	affected	semver	['windows']
`[23.2.22-LA,23.2.22-LA-S1)`	affected	semver	['windows']

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

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.

Exploit prediction score: < 1% (0.102% probability within 30 days)

Key SSVC decision points have not yet been added.

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

History

Nov 10, 2026 10:15 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Illumio Illumio core Ven
Vendors & Products		Illumio Illumio core Ven

Nov 9, 2026 9:45 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

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		https://product-docs-repo.illumio.com/Tech-Docs/Security+Advisories/out/en/security-advisories/insecure-folder-permissions-in-the-windows-ven.html
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'}`