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

PriorityP334high7CVSS 3.1

AVLACHPRLUINSUCHIHAH

EPSS

0.10%

1.3th percentile

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

CVSS provenance

nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv4.08.5HIGHCVSS: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

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