Description
The affected product creates a directory with insecure default permissions during administrative installation. This allows a low-privileged local attacker to modify a temporary file defining the components to be installed, enabling local privilege escalation by forcing the deployment of arbitrary components.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| CODESYS | CODESYS Development System | 3.0.0.0 – < 3.5.22.20 | 3.5.22.20 |
Advisories 2
- WID-SEC-2026-1675 CODESYS: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 26, 2026
- ADVISORY2026-09_VDE-2026-055 CODESYS Development System - Incorrect Default Permissions CERT@VDE · May 26, 2026