CVE-2026-2364
CODESYS Installer TOCTOU Privilege Escalation
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.3EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
10 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Affected products
CODESYS · CODESYS InstallerWant to know if your infrastructure is exposed to this?
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