CVE-2026-44469

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.certvde.com/en/advisories/VDE-2026-055/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:*

History

28 May 2026, 20:09

Type	Values Removed	Values Added
CPE		cpe:2.3:a:codesys:development_system::::::::
First Time		Codesys Codesys development System
References	~~() https://www.certvde.com/en/advisories/VDE-2026-055/ -~~	() https://www.certvde.com/en/advisories/VDE-2026-055/ - Third Party Advisory

26 May 2026, 08:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-26 08:16

Updated : 2026-05-28 20:09

NVD link : CVE-2026-44469

Mitre link : CVE-2026-44469

CVE.ORG link : CVE-2026-44469

JSON object : View

Products Affected

codesys

development_system

CWE

CWE-276

Incorrect Default Permissions

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