What is CVE-2026-2364?

CVE-2026-2364 is a high-severity vulnerability in Codesys Installer, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.3/10. Published 2026-03-10.

How severe is CVE-2026-2364?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Codesys Installer

CVE-2026-2364

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.

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.000 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Codesys Installer — versions 0.0.0

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

certvde.com/de/advisories/VDE-2026-012

Frequently asked questions

What is CVE-2026-2364?: CVE-2026-2364 is a high-severity vulnerability in Codesys Installer, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.3/10. Published 2026-03-10.
How severe is CVE-2026-2364?: High severity. CVSS v3 base score is 7.3 out of 10.