CVE-2026-44469
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductCodesys Development System
PublishedMay 26, 2026
First seenMay 26, 2026
Weakness typeCWE-276CWE-276
How to fix
Update
- codesys development_system3.5.22.20 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| codesys development_system | v < 3.5.22.20 | 3.5.22.20 |
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