Vulnerability · Published Mar 10, 2026 · Assigned by CERTVDE
CVE-2026-2364CODESYS Installer TOCTOU Privilege Escalation
High 7.3
In plain English
A high-severity security flaw in CODESYS Installer from CODESYS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)<0.1%top 99.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CODESYS | CODESYS Installer | 0.0.0 – before 2.6.1.0 |
Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H