CVE-2026-44469

published 2026-05-26

CVE-2026-44469: The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A…

high 8.5 CVSS 4.0

AV L AC L AT N PR L UI N VC H VI H VA H SC N SI N SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
codesys	codesys_development_system	>= 3.0.0.0 < 3.5.22.20	3.5.22.20
codesys	development_system	< 3.5.22.20	3.5.22.20

CWE-276