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CVE-2026-2364

High

Description

If a legitimate user confirms a self-update prompt or initiate an installation of a CODESYS Development System, a low privileged local attacker can gain elevated rights due to a TOCTOU vulnerability in the CODESYS installer.

SeverityHigh
CVSS7.3
Exploit probability—
ProductCODESYS Installer
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-367CWE-367

How to fix

Update
  • CODESYS CODESYS Installer2.6.1.0 or later

Affected products

ProductAffected versionsFixed in
CODESYS CODESYS Installerv < 2.6.1.02.6.1.0

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