CVE-2026-2364 HIGH

CVE-2026-2364: CODESYS Installer TOCTOU Privilege Escalation

Vendor Codesys
Product CODESYS Installer
Weakness CWE-367
Published March 10, 2026
Last update March 10, 2026
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 10, 2026 CVE published
March 10, 2026 Record updated