PT-2026-43197 · Codesys · Codesys Development System

David Ruscheweyh · Published 2026-05-26 · Updated 2026-05-26 · CVE-2026-44469

Mitre

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A low-privileged local attacker can exploit a TOCTOU race condition with a practical time window to replace verified files with malicious ones before installation, resulting in local privilege escalation.

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2026-44469

Affected Products

Codesys Development System

References · 1

• https://certvde.com/en/advisories/VDE-2026-055 · Note