# CVE-2026-114031: Local privilege escalation via insecure folder permissions

Status: published. Published: 2026-11-09. Updated: 2026-11-09.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Illumio / Core Ven: ≥ 26.2.30; < 26.2.30-S1 (affected, semver); ≥ 26.2.12; < 26.2.12-S1 (affected, semver); ≥ 25.2.41; < 25.2.41-S1 (affected, semver); ≥ 25.2.40; < 25.2.40-S1 (affected, semver); ≥ 25.2.31; < 25.2.31-S1 (affected, semver); ≥ 25.2.20; < 25.2.20-S1 (affected, semver); ≥ 25.2.10; < 25.2.10-S1 (affected, semver); ≥ 24.2.40; < 24.2.40-S1 (affected, semver); ≥ 24.2.35; < 24.2.35-S1 (affected, semver); ≥ 24.2.30; < 24.2.30-S1 (affected, semver); ≥ 24.2.20; < 24.2.20-S1 (affected, semver); ≥ 24.2.11; < 24.2.11-S1 (affected, semver); ≥ 24.2.10; < 24.2.10-S1 (affected, semver); ≥ 23.2.31; < 23.2.31-S1 (affected, semver); ≥ 23.2.31-LA; < 23.2.31-LA-S1 (affected, semver); ≥ 23.2.30; < 23.2.30-S1 (affected, semver); ≥ 23.2.24; < 23.2.24-S1 (affected, semver); ≥ 23.2.24-LA; < 23.2.24-LA-S1 (affected, semver); ≥ 23.2.23; < 23.2.23-S1 (affected, semver); ≥ 23.2.22; < 23.2.22-S1 (affected, semver); ≥ 23.2.22-LA; < 23.2.22-LA-S1 (affected, semver). Source: CNA: Illumio; platforms: Windows

## Severity and prioritization

- CVSS 3.1: 7.8 (high); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: Illumio

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-732

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://product-docs-repo.illumio.com/Tech-Docs/Security+Advisories/out/en/security-advisories/insecure-folder-permissions-in-the-windows-ven.html (CNA: Illumio; vendor-advisory)

## Provenance

- CNA: Illumio: https://www.cve.org/CVERecord?id=CVE-2026-114031; retrieved 2026-11-09; source updated 2026-11-09

Revision: 3d4eb57075363370c35f8a3397774348af0271fc7ac0f03db5fe7677c412a619

Canonical: https://y2.dev/cve/CVE-2026-114031

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